请大家帮忙分析一下一道四级阅读句子 四级, 阅读, 帮忙

爱的奇迹2006

The meaning of a word depens on what a particular person means by it in a particul－ar situation;and it is clear that what a child means by a word will change as he gains more exprience of the world.
请朋友分析一下 句子的主干是不是 The meaning   depens on means;
后面这个是it带的形式主语 从句的主干是不是  means will change .
请问 means by　在这里是分开　还是　短语？
请朋友帮忙分析一下这段话的语法知识
非常感谢！
感谢朋友加我ＱＱ：２７６６８０２１９　指点！谢谢！