The frailty of old age; senility.
老迈，衰老老年岁人的脆弱；
Many ancients devote their whole life to research work. For them, the frailty of old age gives way to the strong interest they've discovered in their occupations.
学无止境，一生的时间都嫌太短，所以古人皓首穷经，头白了还是在继续研究，不过在这样的研究中确是有浓厚的趣味。
Many ancients devote their whole life to research work. For them, the frailty of old age gives way to the strong interest they've discovered in their occupations.
学无止境，一生的时间都嫌太短，所以古人皓首穷经，头白了还是在继续研究，不过在这样的研究中确是有浓厚的趣味。
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