Clack valve
止回阀
🧩 词语组成解析
clack
[[klæk]]
v. 噼啪响\\nn. 噼啪响
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
Americans consider it extremely bad manners to be late.
美国人认为迟到是一种极不礼貌的做法。
On a cold day, a warm fireplace feels very nice.
在天寒地冻的日子，温暖的炉火旁是很舒服的。
for five of her sixteen watertight compartments had already been flooded!
16个密封舱已有5个进水。