He is unafraid to move with the times...他敢于与时俱进。She was a forceful intellectual unafraid to speak her mind.她是个很有魄力的知识分子，不惧怕说出自己的想法。He stood unyielding and unafraid against the enemy.他面对敌人,英勇无畏.He is unafraid to move with...
Neanderthal man was able to kill woolly mammoths and bears.尼安德特人能够捕杀浑身覆毛的猛犸象和熊。Mammoths were herbivorous mammals.猛犸是食草性哺乳动物。Which was just the thing to help mammoths keep their cool.这恰好帮助了猛犸在冰河时代保持冷静,从而幸存下来....