Biotin
n. 生物素\\n[化] 生物素; 维生素H
🗣️ 情景例句
They've always got an opinion.
他们总有自己的看法。
We should keep them informed of what is going on here.
我们应该让他们知道这里发生的事情。[分词作定语]
You mustn't come home late.You must be home at half past ten.
你不准回家太晚，你必须在10点半到家。