首先：first, firstly, at the first place, the most important comes first
第二/其次：then, second, secondly, in the next place
第三/最后：third, thirdly, last but not least
总之：all in all, in brief, in a word, in short
每当提到.../关于...：When it comes to..., Referring to...
尽一切努力：spare every effort to, try one's best to
在我看来/我的观点是：in my opinion, as far as I can see, It appears to me that...
只有这样我们才能...：Only in this way can we...