Geocenter
地球质量中心
🗣️ 情景例句
We have a wide connection in U.S.A.
我们在美国各地有广泛业务关系。
Speak little of your ill luck and boast not of your good luck.
少说失意事，莫夸好运道。
Skating is interesting.
滑冰很有趣。