Toxoids
类毒素
🗣️ 情景例句
He'll do anything to avoid getting down to math lessons,
他老是设法想逃避数学，
What are you going to do with the books?
你打算拿这些书怎么办？
First of all, he wrote out a long list of all the foods which were forbidden.
首先，他开列了一张长长的单子，上面列了所有禁吃的食物。