But how good is it, in terms of giving patients relief from the pain, breathing difficulty and fatigue of chronic sinusitis?

但是，这种手术在给患者减轻呼吸困难和慢性鼻窦炎的痛苦方面究竟有多大的好处呢？

youdao

He developed symptoms of fever, cough and breathing difficulty on 6 November, was hospitalized on 9 November, and died on 19 November.

他于11月6日出现发烧、咳嗽和呼吸困难等症状，11月9日住院并于11月19日死亡。

youdao

His two brothers, aged 7 and 20 years, had onset of illness on 3 November and died on 11 November, following symptoms of fever and breathing difficulty.

他的两个兄弟，年龄为7岁和20岁，于11月3日发病，并在出现发烧和呼吸困难等症状后于11月11日死亡。

youdao

When asthma is most severe, the person may have extreme difficulty breathing.

VOA: special.2009.07.28

On Saturday, President Jacob Zuma's office announced that the former leader was breathing without difficulty.

BBC: Churches hold prayers for ailing Nelson Mandela

On Saturday, Mr Zuma's office said Mr Mandela was breathing without difficulty and that excess fluid had been drained from his lungs.

BBC: Nelson Mandela visited by family in hospital

Nelson Mandela is breathing without difficulty, South Africa's presidency has said, as he spends a third day in hospital with a lung infection.

BBC: Nelson Mandela breathing without difficulty - presidency