How much is this?Can you give me a discoant?I'll take it.Hel

How much is this? 这东西多少钱?
Can you give me a discount?你能给我打个折扣吗?
I'll take it. 我买它.
Help!Stop,thiet.Call the police!
快来帮忙啊,停下来,小偷.快报警.