And I know it is only the third quiz, but I like to keep the quiz number the same as the homework number.

我知道这只是第三次小测，但我喜欢将小测题数保持不变,就像家庭作业题一样。

麻省理工公开课 - 固态化学导论课程节选

You can enter more than once, if you want.

你们如果愿意的话，也可以多测几次。

麻省理工公开课 - 固态化学导论课程节选