Valve cylinder
[化] 阀筒
🧩 词语组成解析
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
How much do you need?
你需要多少钱？
Who minds his own business has no time to mind other folks.
为人只顾自己事，就无时间关心人。
and no child born into one on the opposite side of the globe can ever achieve the thousandth part.
在地球的另一边，诞生在另一个社团的孩子与他就很少有相同的风俗。