Ball-bearings
(ball-bearing 的复数) 滚珠轴承
🧩 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;
[经] 方位
🗣️ 情景例句
Max will always have a family member to watch over him
家里总会有一个人照顾Max
When did you do homework?
你什么时候做家庭作业？
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