Knickpoint
n. [地]裂点,尼克点(指河流纵剖面上坡度的突变点)
🗣️ 情景例句
Oh! I just drop in on him for a chat.
哦，我只是顺便来和他聊聊天。
I'll make up the money to the amount you need.
我会补足这笔款项。
So the number of stars that we know exist is now estimated at about 300 million million million.
因此，我们所知道的现有恒星数目估计约有30亿×1000亿颗。