Ball valve
[化] 球阀; 球心阀
🧩 词语组成解析
ball
[bɔl]
n. 球;棒球（投手投出的）坏球;拇指球;舞会;
vt. 做成球状，使成团块;（指男性）和（女性）交媾（美式英语）;
vi. 呈球形，成团块;[美国俚语、口语]狂欢作乐，消遣;尽情作乐，尽情地玩;
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
He's had so many colds and sore throats recently.
他最近常常感冒喉咙痛。
He has lived here for a year.
他在这儿住了一年。[持续到现在的行为]
It usually comes in February or March. Summer is often very hot.
通常在2月或3月开始。夏天很热。