Ectosphere
[医] [中心]球外层
🗣️ 情景例句
Thank you, thank you!
谢谢 谢谢
Your history paper is due.
你的历史课作业该缴了。
He's only forty-one years old, and he has already been to nearly every country in the world.
他只有41岁，但他却过世界上几乎每一个国家。