Serogan
[化] 血清促性腺激素
🗣️ 情景例句
We usually accept payment by irrevocable L C payable against shiping documents.
我们一般用不可撤销信用证，凭装运单据结汇付款方式。
Give me someone who can speak English.
找一位能讲英语的人来。
Yes?
什么事？