Upcurrent
n. 上升气流
🗣️ 情景例句
Please sit down, Mr. Stewart.
请坐， Stewart先生。
My brother's in the army.He was just promoted to the rank of major.
我的兄弟在军队工作.他就被提拔为少校。
The real dividing line between continents and oceans occurs at the foot of a steeper slope.
大陆和海洋的真正分界线是在陡坡脚大陆架慢坡