英语四级作文万能模板:问题解决型Withthe____of____,Soitisofgreatimportanceforusto____.Ontheonehand____,Ontheotherhand____,However,wehavefiguredoutmanywaysto_____.Firstly,____Solongas____.Secondly____,Thirdly____.Infact____,Thatisbecause____.Inaword,________.