airstream

The warm airstream from the south brought mild weather to the coast.

来自南方的暖气流给海岸带来了温和的天气。

用法提示：airstream 作可数名词，指一股明确的气流。

Pilots monitor the airstreams at high altitudes to save fuel.

飞行员监测高空气流以节省燃油。

用法提示：这里用复数 airstreams，表示多股气流，airstream 是名词。

A strong airstream pushed the clouds across the valley quickly.

一股强气流迅速将云层吹过了山谷。

用法提示：airstream 是名词，单数形式表示一股气流。