Indeed, the world's 37 species of seahorse are fish, breathing through gills and using a swim bladder to control their buoyancy.

事实上，世界上有37种海马是鱼，它们通过鳃呼吸，用鱼鳔来控制浮力。

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He was breathing through his open mouth.

他张着嘴呼吸。

《牛津词典》

If you're running in cold weather, try breathing through a scarf or neck warmer.

如果你在寒冷的天气下跑步，试着通过围巾呼吸或者时脖子保暖装备。

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The 1960s technique involves focusing on the diaphragm while breathing, and emphasises breathing through the nose, accompanied by relaxation training.

BBC: NEWS | Health | Breathing technique 'aids asthma'

Information Minister Ernesto Villegas said that as the Venezuelan leader was breathing through a tracheal tube, it was difficult for him to speak.

BBC: Venezuela's Hugo Chavez in first post-surgery images

Maybe he had some trick, like that thing you see in old films, where the spy or whoever sits for hours underwater, breathing through a hollowed stick or a reed.

NEWYORKER: Something Like Happy