1、But breathlessness could also indicate a heart attack or heart failure.
但是，呼吸困難也可能暗示心臟病發(fā)作或心衰。

2、Even then, there may be breathlessness requiring oxygen to be given by mask.
即使在當(dāng)時(shí)，可能會(huì)有呼吸困難，需要氧氣，以給予的面具。

3、They can reduce ankle swelling and breathlessness and may increase life expectancy.
它們可以減少踝關(guān)節(jié)腫脹和呼吸困難，并可能增加的預(yù)期壽命。

4、There had been no sign of either breathlessness or chest pain before the heart attack.
心臟病發(fā)前并未出現(xiàn)呼吸困難或胸痛的病征。

5、The chief symptoms were cough, breathlessness and cyanosis.
主要癥狀有咳嗽、氣急與紫紺。