If it's very cold, consider wearing a face mask or scarf to warm the air before it enters your lungs.

如果非常冷，可以考虑戴口罩或者围巾以使空气温暖的进入肺。

youdao

When it's really cold, wear a face mask or a scarf over your mouth to warm the air you breathe and protect your face.

很冷的时候，戴一个面罩或者围巾遮住嘴，可以给你呼吸的空气保点温，同时也可以保护你的脸。

youdao

Some runners may experience throat irritation if they breathe cold air directly—avoid this by wearing and breathing through a scarf or ski mask.

如果直接吸入冷空气，可能会觉得咽喉疼痛。 可以透过围巾或者滑雪口罩呼吸。

youdao

Mr Rogerson said he had a scarf over his face during the incident because a tooth filling had dropped out and the "cold air was getting in".

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