Nowadays,therearemoreandmore[某种现象]in[某种场合].Itisestimatedthat[相关数据].Whyhavetherebeensomany[某种现象]?Maybethereasonscanbelistedasfollows.Thefirstoneis[原因一].Besides,[原因二].Thethirdoneis[原因三].Tosumup,themaincauseof[某种现象]isdueto[最主要原因].Itishightimethatsomethingweredoneuponit.Foronething,[解决办法一].Ontheotherhand,[解决办法二].Allthesemeasureswillcertainlyreducethenumberof[某种现象].