Acetabulum
n. 髋臼, 吸盘\\n[医] 髋臼; 腹吸盘
🗣️ 情景例句
We've been driving for hours with no gas station in sight.
我们开车开了好久也没有看到一个加油站。
Nothing for nothing.
不费力气，一无所得。
It is the one world in the Solar System that is most like the Earth.
火星是太阳系里与地球最接近的一颗行星。