If this is true, if these babies are designed to learn -- and this evolutionary story would say children are for learning, that's what they're for -- 如果第二种解释是真的。那这些小宝宝天生就是学习的料，从进化论来看，他们天生就在学习，学习就是他们的本

联合国2017年世界人道主义日主旨演讲。（中英对照） Every year on World Humanitarian Day, we shine a spotlight on the millions of civilians around the world whose lives have been caught up in conflict. 每年的世界人道主义日，我们都提醒人们关注全球各

Now, I also want to say thank you to your families back home so that when you talk to them you know that they know. (Applause.) They’re serving here with you -- in mind and spirit, if not in bod

随着我国与各国的合作交往愈来愈频繁，具存较好外语口才的人也愈来愈受欢迎。但由于受教育体制和语言环境等因素的影响，学生大多英语口头表达能力不强。那该如何提高英语口语能力呢？ 01.复述 学英语离不开记忆，记忆不是硬记硬背，要有灵活性。复述就是一种很好的自我训练口语，记忆单词。句子的形式。复述有两种常见的方法。一是阅读后复述，一是听语音后复述。听语音后复述会更好些，这种方法既练听力，又练口语表达能力。

The other great principle of evolution is sexual selection, and it operates very differently. 进化的另一大原则是性选择，它运作的方式则大相径庭。 The peacock's magnificent tail is the most famous example of this. 孔雀那华丽的尾巴就是最著名