01表明事实1、Wecannotignorethefactthat我们不能忽略这个事实2、Noonecandenythefactthat没人能否认这个事实3、Thisisaphenomenonthatmanypeopleareinterestedin.4、becloselyrelatedto~~(与...息息相关)02采取措施1：Thereasonwhy+句子~~~isthat+句子(...的原因是...)2：Thisphenomenonexistsforanumberofreasons.First,.Second,.Third，。这一现象存在有很多原因的，第一第二第三3：Foronething,Foranotherthing，==Ontheone...
