Balljoint
n. (肩,膝等的)球状关节, 杵臼关节
🗣️ 情景例句
Do you have any objections to my paying in cash?
你反对我付现金吗？
Children are the parents's riches.
子女是父母之财富。
When several elephants are being trained at one time,
几只象同时训练时，