Valve cock
[化] 閥栓
?? 詞語組成解析
valve
[v?lv]
n. 閥;真空管;（管樂器的）活栓;（心臟的）瓣膜;
vt. 裝閥于;以活門調(diào)節(jié);
cock
[k?k]
n. 公雞;成熟雄鳥;首領(lǐng)，領(lǐng)導(dǎo);龍頭;
vt. 使某物豎起;使某物傾斜;使朝上;扳上扳機(jī);
vi. 翹起，豎起;大搖大擺;
??? 情景例句
Then, in college, I became good at it.
然后， 在大學(xué)， 我變得很精于數(shù)學(xué)。
Yes. And something else, please don't borrow my clothes without asking.
是的。還有一件事，沒問過我，請別拿我的衣服。
At night, families often stay in the open air near their houses.
晚上很多人家常呆在附近戶外。