They’re channelling the natural resources of youthful idealism into political action.
他们正在把青年固有的那种充满理想的热情引导到政治活动中去。
If you want to retain youthful vigor,you have to take regular exercise.
如果你想保持青春活力,你就得经常锻炼。
World population today is very youthful , particularly in the Third World.
今天,世界人口非常年轻,特别是在第三世界。
He is a youthful expert.
他是个年轻的专家。
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