最佳答案
she is a girl(她是一个女孩。)和she is a five years old.(她五岁。)是两个含有系表结构的简单句。这两句可以合并为She is a five-year-old girl.(她是一个五岁的女孩。)
five-year-old作girl的定语,此时必须加连接号,另外,名词year不能用复数形式。类似的句子还有This is a-500-meter-long river.(这是一条五百米长的河。)。
she is a girl(她是一个女孩。)和she is a five years old.(她五岁。)是两个含有系表结构的简单句。这两句可以合并为She is a five-year-old girl.(她是一个五岁的女孩。)
five-year-old作girl的定语,此时必须加连接号,另外,名词year不能用复数形式。类似的句子还有This is a-500-meter-long river.(这是一条五百米长的河。)。