1、 在各种……之中，…… among various kinds of …, … /= of all the …, …

例︰在各种运动中我尤其喜欢慢跑。

among various kinds of sports, i like jogging in particular.

2、 就我的看法……;我认为……

in my opinion, …

3、不用说…… it goes without saying that …

= (it is) needless to say (that) ….

= it is obvious that ….

例：不用说早睡早起是值得的。