first与at first区别详解
区别一:词性不一样
first可用作形容词或副词,有时还可用作代词;而at first是一个介词短语,只起副词用作用(在句中用作状语)。如:
This is the first time I have heard of such things. 这是我第一次听到这样的事。(first为形容词,在句中用作定语)
First class is the most expensive way to travel. 坐头等舱是最贵的旅行方式。(first为形容词,在句中用作定语)
You needn’
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