Mods
abbr. 载人的轨道研究站（manned orbital development station）
🗣️ 情景例句
Oh, who could that be?
啊，这会是谁呢？
Please try to be congenial and welcome the guests with a small.
请用笑脸愉快地迎接客人吧。
We are good friends.
我们是好朋友。