He has three English dictionaries.他有三本英语词典。
The rope is only 2.15 meters long.这根绳子只有2.15米长。
Sunday is the first day of the week.星期天是一周的第一天。
The second one is more expensive.第二个更贵。
【提示】 序数词或被序数词修饰的名词后要用不定式作定语。
He is always the first to arrive.他总是第一个到。
She is the second person to be praised here.她是这里第二个受表扬的。