year old 用法－Journal

Feb 05 Tue 2013 00:05
year old 用法

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一個10歲的男孩：
a ten years old boy. 這裡years old是固定搭配，前面是ten，所以用複數。
a ten-year-old boy.   這裡ten-year-old是一個復合形容詞，中間有連詞符，所以year用單數。

一些10歲的男孩子們
some ten years old boys. years old是固定搭配，通常前面是數字，year根據數字選擇用單數或複數
some ten-year-olds boys. old這裡可看做是名詞，加s變複數，
總結：復合形容詞 x-year-old修飾單數，而x-year-olds修飾複數。