Everybody knows that … 每個人都知道……
It can be easily proved that 那是很容易證明……
It is true that ……是真實(shí)的
No one can deny that 誰也不能否認(rèn)
One thing which is equally important to the above mentioned is … 跟上述同樣重要的一項(xiàng)是…
The chief reason why 為什么……是主要原因……
We must recognize that 我們必須承認(rèn)……
There is no doubt that 無疑地
I am of the opinion that 我認(rèn)為
This can be expressed as follows 可分為下列數(shù)點(diǎn)
To take …for an example … 以……為例……
Therefore we should realize that 因此我們應(yīng)該了解……
We have reason to believe that 我們有理由相信……
(Now that) we know that (既然)我們知道……
what is more serious is that 更嚴(yán)重的是