Hand valve
[化] 手动阀门
🧩 词语组成解析
hand
[hænd]
n. 手;协助，帮助;（工具等的）把，柄;掌管;
vt. 传递，交给;搀扶;支持;
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
I have an announcement to make.
我要宣布一件事。
Karl was so upset that he began to turn red with anger.
卡尔非常惊讶，红着脸开始生气了。
Some people don't like winter, but I quite like it.
有些人不喜欢冬天，但我很喜欢。