Ball cover
[化] 滚珠轴承盖
🧩 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;
🗣️ 情景例句
I wish I had the recipe.
我真希望我有份菜谱。
My sister has been engaged for two months.
我的姐姐订婚有2个月的时间了
Good morning, nurse.I was to see the dentist,please.
早上好，护士。我想见牙科医生。