Balljoint
n. (肩,膝等的)球状关节, 杵臼关节
🗣️ 情景例句
Sir, Mr. Bennings is here to see you.
先生，本宁先生来这儿见你。
I haven't the slightest idea.
我一点儿都不知道。
This lunch is on me today,
今天这顿饭算我请客。