- 问题详情:Ourchildrenandgrandchildrenmaynothaveachancetovisitmanyofthemostfamousplacesaroundtheworld.War,weather,age,trafficandpollutiondamagethesefamousplaces.Lookingaftertheseplacesoftencostsmorethanonecountrycanafford.Intheearly1970s,worldgovernment...
- 9863