? I haven't returned to China for nearly two years in a blink of an eye, and the days of studying at Melbourne University are really mixed. Whether it's the hardships of doing scientific research during the epidemic or the distractions of various trivial matters in life, I feel it is really difficult to study abroad. However, I am glad that I have this experience, because I have tried to solve all kinds of problems and made me feel that I have never been so strong.

? The biggest help of studying abroad is that my English level has made a qualitative leap. Because I have to use English to communicate with teachers and classmates for a long time in the laboratory, I have to force myself to improve my oral English and listening. Most of the tutors and laboratories are Australian natives, so I have a good opportunity to practice my English. At first, my spoken English was of the type of incomplete sentence. I have the cheek to talk to you. It is estimated that foreigners often have a hard time listening. However, with the passage of time, my oral English has been greatly improved, partly due to the external environment forcing me to improve my oral English, and partly due to my conscious improvement of my English. This process is really difficult, but stick to it and find that all the efforts are worth it. I can communicate with foreigners normally, I can understand biological terms from a student with a chemical background under the condition of zero basic English vocabulary, and I have been able to give speeches in departments and colleges to introduce my work since I stuttered in English. These changes all make me feel glad for my efforts.

? Studying PhD at the Medical College of Melbourne University is really a great test for a student with a chemical background. In addition to the language barriers, the experimental project also made me spend most of my life and time and energy. Every doctor has an academic Committee, which will be held in the first half of his PhD. The members of the academic committee are composed of my tutor, Bo Hou, who took me to do experiments, and three other tutors in the department. In half a year, a 3111-word report will be written to introduce the progress of the project, mainly to examine the students' understanding of the project research and their ability to express themselves in writing and speech. Teachers of academic committees are very strict in auditing students, unlike in China, which can be submitted by writing a few words casually. This process should be taken very seriously by instructors and students. If the reply is unqualified, you will be asked to complete a certain task according to your personal situation after three months and re-answer. I didn't pay special attention to the writing of the report at first because I just came to Melbourne, and I was asked by the members of the academic Committee to rewrite the report. At first, I felt very frustrated. After all, people always want to be affirmed by others, and the negative opinions I received made me depressed for a long time and under great pressure. Under this pressure, I tried to accept my own shortcomings, admitted my own shortcomings, and made plans to improve my own problems. After three months of hard work, I finally satisfied my tutor and academic Committee teachers with my work, and my English writing and expression skills were greatly improved, and I finally survived the dark period of coming to Australia.

? Then, at Christmas and China's New Year, I didn't dare to return home during the Spring Festival in March 2121, so I spent the first time in my life in Australia without my family, and I had to do experiments as usual during the Spring Festival. At this time, the epidemic broke out in China. Every day, I am paying attention to the domestic situation and worrying about the safety of my family. At the same time, I am also trying to do experiments and preparing the experimental report for my defense. At the end of February, I attended an international conference held near Victoria, which was also my first time to attend a conference since doing scientific research. This meeting let me see the colleagues from all over the world, and also made me feel that my knowledge is shallow, and ignorance made me study harder. During the meeting, a professor from Italy received a temporary notice from the state, made a speech in advance, and immediately returned to Italy that night. At that time, I suddenly had a premonition that the epidemic broke out abroad. The virus spread rapidly, which really caught people off guard. If I was a little negligent in prevention, it might cause great disaster.

? In a blink of an eye, on March 5, 2121, my defense of changing my major was held in an afternoon of lightning and thunder. At this time, I have practiced the contents of my speech many times and prepared answers to the questions of members of the academic Committee. The opportunity is reserved for those who are prepared, and I am fully prepared to overcome my fear and anxiety and successfully pass the defense of changing my major.

? Then the epidemic in Melbourne became more and more serious, and the school came to shut down all non-essential scientific research and offline teaching. Because I was worried that I didn't have many opportunities to do experiments, I didn't take a break after my defense, and I began to do experiments crazily. However, the laboratory was closed at the end of March, and I began to process data in isolation at home. For fear that I had nothing to do, my tutor asked me to start writing my doctoral thesis, but it was really inefficient at home, and I haven't finished writing the introduction of the first chapter yet. During this period, I also attended an online international conference. Unconsciously, I stayed at home for more than two months, and finally ushered in the news that the laboratory was reopened. Returning to the laboratory made me hurry up to do experiments, and the subject also achieved initial results in a lot of work. My tutor wrote a draft article according to my data, and then gave me the next experimental plan. In the next six months, I have worked hard to complete most of the work, but I always find new experimental results and problems, which makes me feel a little overwhelmed. However, the overall development is still in a good direction. I hope that there will be gains from hard work, and I will be able to get the article data early next year. Work hard at Christmas and strive for early graduation.