Dual-gravity valve
[机] 双比重阀
🧩 词语组成解析
dual
['dju(:)əl]
adj. 双的，两部分的，二体的，二重的;
n. 双数;双数词;
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
Yah, I have been here only two months.
是啊，我在这儿仅两个月。
I am working for a trading company as an assistant manager in the overseas distribution section.
我在一家贸易公司的海外行销部门做经理助理。
Later we learnt that there was a very important person on board.
后来我们才得知，飞机上坐了一位非常重要的人物。