名词
中文翻译：虚弱的
同义词：
['feeble', 'feeble-minded', 'feeble-spirited']
例句：
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1.The old man's health is frailish, and he needs to take care of himself more.
老人的健康很虚弱，需要更加照顾自己。
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2.The baby was born with a frailish constitution, which made it difficult for him to walk.
这个婴儿出生时体质虚弱，走路都很困难。
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3.The old woman was frailish, but she still managed to get up and walk around the house.
这位老太太身体虚弱，但还是设法在房子里走来走去。