✅ 同义词
🗣️ 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。
What are you talking about?
你说什么？
I'm tired of working all day.
整日工作使我厌烦。