世代: 1.(好几辈子) for generations; from generation to generation; generation after generation2.(年代) an epoch or era3.[生物学] generation◇世代间隔 generation interval; 世代交替 [生物学] alternation of generations
勇敢: brave; courageous; valiant; gallant 短语和例子勇敢的战斗精神 valiant fighting spirit; 勇敢善战 courageous and skillful in battle; 勇敢无匹 brave without equal; 机智勇敢 be brave and resourceful; 勤劳勇敢的人民 a brave a