Valve clack
[化] 阀瓣
🧩 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;
clack
[[klæk]]
v. 噼啪响\\nn. 噼啪响
🗣️ 情景例句
that will bring parents and teachers together once a week
让家长们及教师每星期一次
Ill-gotten wealth never thrives.
悖入悖出。
Not far. My house is about twenty minutes by bike.
离的不远，骑自行车大约20分钟的路程。