1. 一般而言

As a general thing

As a rule

As people go

At large

Generally speaking

In general

On the average

2.就我而言

In my opinion

I'm of the opinion that

As far as l know

3.坦白来说

Frankly speaking

To tell the truth

To be frank

4. 常言道/据说

As the thing is

it's said that

People say that

They say that

5.众所周知/显然

Everybody knows that

It goes without saying that

It's quite obvious that

It can be easily proved that

No one can deny that

There is no doubt that

Needless to say

6.说起来并不过分

It is not too much to say that

7.大意是说

It is to the effect that

8.问题在于

What seems to be the problem is...

9.部分因为…部分因为.

Partly by... and partly by...

Partly with...and partly with...

What by... and what by...

10.事实上

To all intents and purposes

11.情况如下

The condition is as below/following

12.首先

To begin with

To start with

13.换言之/换句话说

To change another words

14.套向俗话

To cite an old saying

15.让某人....

To one's astonishment令某人吃惊的是

To one's delight令某人高兴的是

To one's disappointment令某人失望的是

To one's excitement令某人兴奋的是

To one's joy令某人高兴的是

To one's regret令某人后悔的是

To one's surprise令某人吃惊的是

16.举例

To take an example

To take...for example

17.我们有足够的理由

We have enough reasons to

18.我必须强调的是

What I must emphasize is ..