Valve rocker
[化] 阀摇杆
🧩 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;
rocker
['rɑ:kə(r);'rɔkə]
n. 摇杆，摇轴;摇椅，摇木马;摇滚乐歌曲，摇滚歌手;弯底冰鞋;
🗣️ 情景例句
What will the monthly payments be?
每月要付多少？
How long has he been with that company?
他在那家公司多久了？
My brother has never been abroad before, so he is fending this trip very exciting.
我弟弟以前从未出过国，因此，他觉得这次旅行非常激动人心。