The advantages for A for outweigh the disadvantages of...
Although A enjoys a distinct advantage ...
Indeed , A carries much weight than B when sth is concerned.
A maybe ... , but it suffers from the disadvantage that...
承上启下：
To understand the truth of ..., it is also important to see...
A study of ... will make this point clear
让步：
Certainly, B has its own advantages, such as...
I do not deny that A has its own merits.
结尾：
>From what has been discussed above, we may safely draw
the conclusion that ...
In summary, it is wiser ...
In short...
在作文中引用合适的名言警句，会给你的文章增色许多。这里收集了我本人喜爱的一些名言，可能会对你有用。我们使用引用的位置可以在开头结尾或正文段落中，
常见的使用形式如下：
One of the greatest early writers said ...
"Knowledge is power", such is the remard of ...
"......". That is how sb comment ( criticize/ praise...).
"......". How often we hear such words like there.
Useful quotations
雅思考试频道推荐资料