Hundredsofyearsago,newswascarriedfromplacetoplacebypeop...
问题详情:Hundredsofyearsago,newswascarriedfromplacetoplacebypeopleonfootorbyhorse.Ittook days,weeksandsometimesmonthsforpeopletoreceivenews.Nowitispossibletosendwordsand picturesaroundtheworldinsecon...