The warm vapor from her breath cuts through the cold air and bounces off of the ground in front of her.

伴着她气息呼出的热气挤进冰冷的空气，跳跃在她面前的地上。

youdao

A front is a transition area between the cold and warm air masses.

锋或锋面是指冷暖气团之间的过度带。

youdao

Walking by front of those houses, I saw family warm breath from each opened wood door, through thatched roof, pushing up to the air, rapidly risen into the dark sky.

我从一家家的门口走过，看着每户敞开的木门里温暖的气息穿透茅草屋顶，袅袅升腾，转瞬消失在黑魆魆的夜空中。

youdao

In a warm front, a mass of relatively warm air pushes against a block of cooler air and is forced to flow up over it.

BBC: Turbulence ahead: Flight heads into storm's heart

Expect your adrenaline levels to rocket and, in the warm, thin air, you will realise that cowering in front of an oncoming silverback is not something you could ever get used to.

BBC: Gorillas in the mix in Uganda