- 问题详情:ThePalmIslandsarethelargestartificialislandsintheworldandareunderconstructioninDubai,intheUnitedArabEmirates.Theyarebeingdevelopedastourist,leisure,andresidentialresorts,andwillincreasethecoastlineofthecountryby120kilometres. Afterfouryearsof...
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