Kelson
n. 内龙骨
✅ 同义词
🗣️ 情景例句
You're working pretty hard these days.
你这阵子工作得很辛苦呀。
Would you please give us a rough idea of the quantity you require?
请告知你方大概要订多少？
They don't get enough air.
（那样）鱼得不到充足的空气。