开头:whenitcomesto...当谈及到
Ifmymemoryservesmewell...如果我没记错的话
Asisknowntous...(Itiswell-knownthat...)众所周知的是
中间:Aboveall/Firstofall首先
Secondly/Then然后
Inaddition/What'smore/Lastbutnotleast除此之外
结尾:Notonlyshouldwe...,butalsoweshould...我们不仅应该...,还应该...
Itismybeliefthat.../Ibelievethat...我相信...