1. Gratitude, a Chinese word whose pinyin is gǎnjī, means deep gratitude, and by extension means excitement and vitality.

2. Source: "Shuo Yuan·Xiu Wen" by Liu Xiang of the Han Dynasty: "The haggard sound of gratitude is made and the people are worried."

3. Example: The things and content of gratitude are often It's even more exciting. You helped me through the difficulties at the critical moment. Things like this make people grateful.