Balljoint
n. (肩,膝等的)球状关节, 杵臼关节
🗣️ 情景例句
Mr. Lu, we are very pleased to be able to offer this product to you.
陆先生，我们很高兴能提供这个产品给您。
Thinks one way, but acts another.
表里不一。
That will be no problem.
没问题的。