《麦克米伦》词典:
Get It Right!: can
The negative form of the verb can is cannot. It is written almost always as one word, not as ‘can not’ (two words):
? The quality of the information can not be guaranteed.
✓ The quality of the information cannot be guaranteed.
? You can not buy true friends or health.
✓ You cannot buy true friends or health.
这里谈及can的否定形式为cannot时,用了”几乎总是“拼写为一个单词,而不是拼写成can not. 在例句中用can not的句子前打问号,表示这样的拼写的正确性受到多数人的质疑。因此我们不应使用can not, 而应该用cannot(正式)或can't (非正式)。
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