Chekenin
[医] 恰凯宁(南美丁香叶中的一种淡黄色结晶性成分)
🗣️ 情景例句
But I have promises to keep,
但是我有约要赴
Why isn't this ticket any good here?
为什么这里不可以使用月票？
I have just received a letter from my brother, Tim.
我刚刚收到弟弟蒂姆的来信，