發現病人呼吸困難。
The patient was perceived to have difficulty in breathing.
不斷增加的`經濟困難迫使他採取了鋌而走險的辦法。
His increasing financial difficulties forced him to take desperate measures.
讓自己長時間聚精會神是很困難的。
It is difficult to make oneself concentrate for long periods.
呼吸困難的病例隨空氣污染的加劇而增加。
Cases of breathing difficulties increase in lockstep with air pollution.
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