这个这个with ...是什么用法昂？急！

with - accompany
this computer comes with keyboard and mouse
this computer is accompanied by keyboard and mouse
with - use
he kills the bear with a gun
he kills the bear using a gun
with - has, own
with or without help, i'm going to try
has help or has no help, i'm goingto try

表示伴随或借助...的状态。
eg.He kill the bear with a gun.

表伴随，用于宾语之后（即句子较为后的部分）。
例，
she is my mother with sunglasses.
这个句子很易懂吧！

介词！