The level of oxygen is very high in water, and you will not have any breathing problems.

水中的含氧量很高，所以你不会有任何呼吸方面的问题。

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Apparently newborns can sometimes have problems with irregular breathing.

显然，新生儿有时会有呼吸不规则的问题。

youdao

Smoking should not be allowed at home if you have a child with breathing problems.

如果你的孩子有呼吸问题，就不允许在家中吸烟。

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Scores of rescue workers have developed respiratory illnesses and cancer, and the deaths of two emergency response workers and a police detective have been blamed on breathing problems related to the many hours they spent searching for victims.

ECONOMIST: Many of the terrorists' victims have not stopped coughing

Patrick said he was told by staff that his daughter's breathing problems might have been triggered by the weather conditions.

BBC: NEWS | Health | Rise in asthma with UK's storms

In infants: Have signs and symptoms included problems with eating or breathing?

CNN: Hydrocephalus