thermals

Birds use thermals to lift them through the air.

鸟类利用上升热气流升入空中。

柯林斯例句

Have you got your thermals on?

你穿保暖衣了吗？

柯林斯例句

Thermals are rising air currents caused by heat.

上升暖气流是由于受热而上升的气流.

互联网