Scallop words are good.

1. Good design: You can choose to spell and memorize the scallop word again, that is, after memorizing the word for the first time, it will appear again later. By spelling the word, you can see whether you have memorized it before without memorizing it. Words are relatively inferior in design.

2. Wide selection: When reciting scallop words, you can choose the corresponding word book to recite according to your needs, such as CET-4, CET-6, CET-4, CET-8, etc., but there is no need to memorize the words.