不过，回家后，妈妈依然没有停下。她还要收拾一家人的换洗衣物，准备大年初一待客的饭食。心疼又帮不上忙的自责，从热闹重回冷清的落差，复杂情绪又一次涌现。
Does new science get us closer to finding out how life on earth began?BBC Inside Science
。爱思助手下载最新版本对此有专业解读
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Esme StallardClimate and science reporter
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