Earthscience
地球科学
🗣️ 情景例句
It's my favorite outfit.
这是我喜欢的那一套。
Don't forget to invite him.
不要忘记邀请他。
About once a month. Not too often, because neither of us has much time. We both have too much work to do.
大约每月一次。不太经常写信，因为我俩的时间都很紧。我们都有做不完的事。