重点讲解：
1. on the house
（餐馆或酒吧）免费招待的；
eg. The owner knew about the engagement and brought them glasses of champagne on the house.
店主知道了订婚一事，于是免费请他们喝香槟。
eg. It was the publican's birthday, so all the drinks were on the house.
那天是酒店老板的生日，所以免费招待顾客喝酒。
2. the scruff of the neck
（从后面）揪住脖颈，抓住衣领；
eg. He picked the dog up by the scruff of the neck.
他一把抓住狗的脖子把它拎起来。
eg. The barman took her by the scruff of the neck and threw her out.
酒吧男招待一把揪住她的颈背，将她扔了出去。
3. want sb. to do sth.
希望某人做某事；
eg. He wants me to go with him.
他希望我同他一起去。
eg. I want us to play hardball on this issue.
我希望我们在这个问题上不手软。