One potential problem is that opening the mouth to breathe detracts from the streamlining of these fishes and tends to slow them down.

一个潜在的问题是，张嘴呼吸会减损这些鱼类的流线型，可能使它们的速度减慢。

youdao

For a moment I saw my home through her eyes: feces, rats, starvation, houses so close together that no one can breathe.

那一刻我看到了她眼中的我的家乡：到处都是粪便、老鼠、饥饿，房屋都挤在一起让人无法呼吸。

youdao

It takes about 7 to 8 trees to make enough O2 for one person to breathe for a year.

大约需要7到8棵树产生足够一个人呼吸一年的氧气。

youdao

Mr Torrance said Mr Otto was dragged free and was struggling to breathe but no one could get to Mr Whipps, of Stapleford Abbots.

BBC: Essex farm workers 'overcome by slurry'

But soon after, I developed a novel mathematical model which can be used by doctors and environmental specialists to quantify the effect of the pollutants on the lung function as measured by the peak expiratory flow rate-- which is essentially how much a person can breathe out in one breath.

WHITEHOUSE: Energy and Environment Latest News | The White House

But now that Take-Two has stepped in, THQ can breathe easy about at least one of those items.

FORBES: Take-Two Takes the WWE Off THQ's Hands