Double safety valve
[化] 双安全阀
🧩 词语组成解析
double
['dʌbl]
adj. 双的;两倍的;两面派的;双人用的;
vt. 使加倍;把…对折;重复;
vi. 加倍，加倍努力;快步走;
adv. 两倍地;双重地;
n. 两倍;双精度型;
doub二，双+le反复 → 反复两倍 → 翻倍
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
Me, neither.
我也没有过。
To film a movie
拍摄电影
From time to time, I notice that he puts a piece of meat down his trousers just before he leaves the factory.
我经常看到，他在快要离厂前把一块肉藏在裤子里。