Contingent duty
[经] 应变关税
🧩 词语组成解析
🗣️ 情景例句
How are you getting on with your studies?
你功课情况如何？
Messengers should neither be headed nor hanged.
两国相争，不斩来使。
and see that nothing particularly alarming is happening to its companions.
并且看到自己的同伴身上没有发生让自己担惊受怕的事。