as for sb:对于（关于）某人，as to sth ：对于（关于）某事
example sentencel:
As to which book is the one that I read recently,It's Antifragile.
As for who is the most handsome one that I think,it's me.
first class:一流 sth be accessible to sb :某些东西对于某人是可利用的（可接触到的）
example sentence:First class facilities are accessible to us students in our school.
broaden one's horizens:扩展某人的视野 a variety of:各种各样的
example sentence:A variety of after-school activities can broaden our horizens.
sincerely:真诚的；诚恳的
I sincerely hope that you will be better and better.
yours sincerely,谨启（用于英文信件署名前）
draw near：来临
Winter is drawing near.
be useful(good) for one's development both physically and mentally
某事对于某人的身心发展是有好处的
example sentence:Reading is useful for our development both physically and mentally.
what matters most is that/Most importantly,
最重要的是
example sentence:What matters most is that/Most importantly ,we should study hard.
That's settled.就这么定了
Well ,that's settled,what are the other things we want to discuss?
Immediately和as soon as 都可以表示一...就...
