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eight years old与eight- year-old

题目详情
eight years old与eight- year-old
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答案和解析
eight years old用做表语或状语,表示8岁大了.
eight- year-old是形容词,用做定语,表示8岁大的...
例如:She is eight years old.(表语)
She is a beautifull girl,eight years old.(状语)
She is an eight-year-old girl.(定语)