The frail elderly often suffer from a combination of multiple chronic diseases that jointly produce disability and predispose them to vulnerability in the face of acute illness.
老年人身体衰弱，往往患有多种慢性病，从而导致残疾，并且极易受急性病患的侵害。
The frail elderly often suffer from a combination of multiple chronic diseases that jointly produce disability and predispose them to vulnerability in the face of acute illness.
老年人身体衰弱，往往患有多种慢性病，从而导致残疾，并且极易受急性病患的侵害。
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