Clappet valve
[建] 止回阀
🧩 词语组成解析
[建] 止回阀
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
For example, did you know that 1 in 4 teenagers has tried marijuana?
比如，你是否知道4个青少年中就有1位曾经吸过大麻？
How is the weather today?
今天天气如何？
Every year I enter for the garden competition too, and I always win a little prize for the worst garden in the town!
每年的花园竞赛我也参加，但总因是镇上最劣的花园而获得一个小奖！