Zinethyl
二乙锌
🗣️ 情景例句
Then an adult must sign for you.
那就必须有一位成年人来替你签字。
I asked him to come with me , but he wouldn't.
我请他和我一起来，但是他不肯。
Here are the two originals of the contract we prepared.
这是我们准备好的两份合同正本。