1、on the other hand用法？大家经常误以为“on the one hand”和“on the other hand”之间有递进或者并列的关系。事实上，这一对短语一般是用于提出两个相反的事物和看法（introduce two contrasting points, facts, or ways of looking at something）。我们对比下面两个例子：On the one hand, if the body doesn't have enough cholesterol, we would not be able to survive. On the other hand, if the body has too much cholesterol, the excess begins to harden the arteries.大意：从一方面讲，如果身体没有足够的胆固醇，我们不可能生存。从另外一方面讲，如果身体的胆固醇过高，血管可能硬化。
2、钪韩咣靶朗文当代英语词典：hand词条下："on the other hand", also "on the one hand... on the other hand"，即，有时候只用"on the other hand"，用于提出前一个事实后，再提出另一个事实；有时"on the one hand... on the other hand"可以联用。（原文："on the one hand," also "on the one hand... on the other hand," used to give another opinion or fact that should be considered as well as the one you have just given.）重要的是，在该词条下《朗文》明确注出： “! Do not say 'on one hand'. Say ‘on the one hand’.”——前面还特地加了感叹号“!”。
3、牛津高阶英汉双解词典： on the one hand... on the other (hand)——即，一方面……另一方面……，后面的hand带了括号，说明该hand可以省略。3、柯林斯词典： 该词典与朗文英语词典一致，即可以只 "on the other hand"，也可以联用"on the one hand... on the other hand"。而且柯林斯词典表明，如果联合使用时，第二个“hand”可以省略，即，这一点与牛津高阶英汉双解词典一致。
