This phenomenon exists for a number of reasons. First, … Second, … Third, …
这一现象的存在是有许多原因的.首先，……;第二,，……;第三，……
Why did …? For one thing …，for another …. Perhaps the primary reason is…
为什么会……?一个原因是……，令一个原因是……;或许其主要原因是……
I quite agree with the statement that … The reasons are chiefly as follows.
我十分赞同这一论述,即……，其主要原因如下:
列出解决办法:
Here are some suggestions for handling … 这是如何处理某事的一些建议.
The best way to solve the troubles is … 解决这些麻烦的最好办法是……
People have figured out many ways to solve this problem. 人们已找出许多办法来解决这个问题.
批判错误观点和做法:
As far as something is concerned, … 就某事而言，……
It was obvious that …很显然,….
It may be true that …, but it doesn't mean that …
可能……是对的,但这并不意味着……
It is natural to believe that …, but we shouldn't ignore that …
认为……是很自然的,但我们不应忽视……
There is no evidence to suggest that … 没有证据表明……
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