Ball non-return valve
[化] 球形止回阀
🧩 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;
non
[[nɔn]]
adv. 非, 不
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
Typing is easy once you get the hang of it.
一旦你掌握诀窍，打字就很简单。
None preaches better than the ant, and she says nothing.
蚂蚁不说话，但最善于说教。
What a pity! I'm afraid that if you've lost it , you must pay for it, said Miss Yang.
“真可惜！如果你真的弄丢了，恐怕你得付钱赔偿，”杨小姐说。