Stopcocks
n. 管闩( stopcock的复数形式 ); 活塞; 活栓; 旋塞阀
🗣️ 情景例句
Examinations are at hand.
考试在即。
Please count the chairs in that room.
请在那个房间里数一下椅子。
The tape was so stick that they did not dare to cross it.
胶带极粘，蚂蚁不敢从上面爬过。