Balljoint
n. (肩,膝等的)球状关节, 杵臼关节
🗣️ 情景例句
They are constantly quarreling.
他们时常吵架。
Kinsman helps kinsman, but woe to him that hath nothing.
亲帮亲，邻帮邻，无亲无助你倒霉。
Our knowledge of the oceans a hundred years ago was confined to the two-dimensional shape of the sea surface and the hazards of navigation presented by the irregularities in depth of the shallow water close to the land.
100年前，我们只知道海洋是二维平面形的，以及靠近陆地浅水区的深浅不一能给航行带来危险。