鸟利用暖气流助飞。

Birds use warm air currents to help their flight.

《牛津词典》

鸟类利用上升的暖气流升空。

Birds use thermals to lift them through the air.

《柯林斯英汉双解大词典》

春季，暖气流北上并与冬天残留的冷气流相遇。

During spring, warm air moves north and mixes with cold air remaining from winter.

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春季，暖气流北上并与冬天残留的冷气流相遇。

During spring, warm air moves north and mixes with cold air remaining from winter.

youdao