on the one hand…on the other hand和for one thing…for another可以互换吗?


【问】

____, smoking helps you relax, but ____ smoking does harm to your lungs. 
A. On the one hand, on the other hand
B. For one thing, for another

答案:A

问题:on the one hand…on the other hand 与for one thing…for another都是“一方面……另一方面……”,有什么区别,可否互换?

【答】

“on the one hand, on the other hand”表达两个转折、对立的方面,中间多用but连接;“for one thing, for another”表达递进关系,中间多用and 连接。 

此外,on the other hand可以单独使用,如:

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