为什么mean后面加了S是对的the iris,the colored part of the eye,contains delicate patterns that are unique to each person,offering a powerful means of identification.

为什么mean后面加了S是对的the iris,the colored part of the eye,contains delicate patterns that are unique to each person,offering a powerful means of identification. The mean princess skipped home without thanking the frog.这句话里为什么the后面加的是mean? I didn't mean to break the grass.为什么mean后面要加to? mean后面要加s吗例：Do you know that the red light ______(意思是)“Stop”? The word harmful means 有害的 in chinese. 一句中,mean为什么加s 为什么the 20 dollar的dollar后面不用加s? 英语的“名词所有格”是：1）一般加“ ’s ” 2）“s “ 尾加“ ’” 那为什么boss后面要加“’s” 如：The boss ’ s letter. goodbye doesn't always mean the end这里的mean 为什么不加salways 如果是三单的话不是需要加s “she is the same as I” 为什么I后面不是加me而是加I呢是as后面 what's mean对还是what mean对?询问老外这是什么意思,为什么要加一个'S?what mean岂不是更简单明了吗 mean的名词是加ing还是s movie和movies的问题1.I’m going to the movies.2.I really love that movie.第一句话的movie为什么后面加S?而第二句话的movie为什么又是原型的呢? 人名后面加s是为什么? 为什么the后面的名词还要加s呢?the palaces为什么palace要加S能不加么? 为什么in the 1860s后面要加s? I don't know what this word means.(为什么“mean”要加“s”） I must go to the grocer's这是新概念第一册79课的一句话.我不明白为什么the grocer's 后面为什么要加个's呢? mean是不可数名词啊,加s?