Howcouldwetelltimeiftherewerenowatchesorclocksanywherei...
问题详情：Howcouldwetelltimeiftherewerenowatchesorclocksanywhereintheworld?Thesunwasprobablytheworld’sfirst“clock”,exceptinthefarnorth,wheretheEskimos(爱斯基摩人)live.There,it’sdarkmostofthewinter,a...