Double-purpose valve
[电] 双作用阀
🧩 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
How late are you open?
你们那里开到多晚？
Much cry and little wool.
雷声大，雨点小。
Carlyle was entirely ignorant of what the bottle in his pocket contained,
卡莱尔不知道药瓶子里装的是什么药，