🧩 词语组成解析
🗣️ 情景例句
We'll open a letter of credit if you promise to effect shipment one month earlier.
如果你方答应提前一个月交货，我们就同意开信用证。
I'm sorry to burst in on you like this, but I'm really upset.
我很抱歉这样突然地找您，但我真的很心烦。
and there is a virtual limit on how long we can hope to remain alive,
我们所希望的长寿实际上是有限度的。