Potain's apparatus
[医] 波坦氏吸引器
🧩 词语组成解析
🗣️ 情景例句
do I really have to
我是不是真的有必要
We know that you are leading exporters of coal and you can provide the quantity we need.
我们知道贵方是主要煤炭出口商，能满足我们的需求量。
He himself has done it lots of times!
他自己就已戒了很多次了！