Anincreasingnumberofexpertsbelievethatmigrantswillexertpositiveeffectsonconstructionofcity . However, thisopinionisnowbeingquestionedbymoreandmorecityresidents, whocomplainthatthemigrantshavebroughtmanyseriousproblemslikecrimeandprostitution.
越来越多的专家相信移民对城市的建设起到积极作用.然而,越来越多的城市居民却怀疑这种说法,他们抱怨民工给城市带来了许多严重的问题,象犯罪和卖淫.
Manycityresidentscomplainthatitissofewbusesintheircitythattheyhavetospendmuchmoretimewaitingforabus, whichisusuallycrowdedwithalargenumberofpassengers.
许多市民抱怨城市的公交车太少,以至于他们要花很长时间等一辆公交车,而车上可能已满载乘客.
Thereisnodenyingthefactthatairpollutionisanextremelyseriousproblem :thecityauthoritiesshouldtakestrongmeasurestodealwithit.
无可否认，空气污染是一个极其严重的问题：城市当局应该采取有力措施来解决它。
Aninvestigationshowsthatfemaleworkerstendtohaveafavorableattitudetowardretirement.
一项调查显示妇女欢迎退休.
NoinventionhasreceivedmorepraiseandabusethanInternet.
没有一项发明象互联网同时受到如此多的赞扬和批评.