Valve gear
[机] 阀动机构
🧩 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;
gear
[ɡɪr]
n. 齿轮;排挡;传动装置;衣服 ;
vi. 接上;调和;
vt. 使适应;装上齿轮;用齿轮连接;
🗣️ 情景例句
What is your regular practice concerning the terms of payment?
你们一般采用什么付款方式？
Scanderbeg's sword must have Scanderbeg's arm.
斯坎德培（阿尔巴尼亚15世纪的民族英雄）的剑，必须要有斯坎德培的臂才能举；宝剑须由烈士擎。
The most surprising thing about it, however, is that it can land anywhere: on snow, water, or even on a ploughed field.
雪地上，水面上，甚至刚耕过的田里。