Ceftiofur
[化] 头孢噻夫
🗣️ 情景例句
But your L C must reach us 30 days before delivery.
但交货前30天，我们必须要收到你们的信用证。
That's international practice. We can't break it.
这是国际惯例，我们不能违背。
I don't know. I haven't made up my mind yet.
不知道。我还没下定决心呢。