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
And miles to go before I sleep,
在我就寝前还得赶许多哩路
We exchange products under almost all circumstances.
在各种情形下我们都可更换产品。
Oh, thank you! said Ann. Look at the nice paper. Can I open it now, or later?
“噢，谢谢你！”安说，“瞧这漂亮的纸。我现在开还是以后再开？”