Oxygen may be given if you have breathing difficulties.

氧气可考虑如果你有呼吸困难。

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Sleep apnea is a sleeping disorder in which one may have breathing difficulties during sleep.

睡眠呼吸暂停是一种睡眠障碍，其中有可能有呼吸困难，睡眠过程中。

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If symptoms continue for more than a few days or you have breathing difficulties you should see your GP.

如果症状持续超过数天或你有呼吸困难，您应该会看到你的家庭医生。

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Having experience of a young child with breathing difficulties who had to have a tracheotomy, I would like to offer the following thoughts.

BBC: Baby dilemma: Whose decision should it be?

Damascus says rebel forces used chemical weapons, but rebel commanders have accused government forces of carrying out the attack, citing reports of victims suffering breathing difficulties and bluish skin.

BBC: Syria conflict: UK concerns over chemical weapon use

Recent cold weather had brought about more cases involving breathing difficulties and chest pains and WMAS is expecting cold and flu symptoms to have an effect on calls over the coming months.

BBC: Ambulance call-outs on increase in West Midlands