it的名词性物主代词是its；
itsdet.(指事物、动物或婴儿)它的，他的，她的
Have you any idea of its value?
你知道它的价值吗？
The car is in remarkably good condition for its age.
就车龄而论，这辆车的状况好极了。
There was discussion about the fire and its likely cause.
对那场火灾及其可能的起因进行了讨论。
水利万物而不争,
而万物莫能与之争。
