重点讲解：
1. excuse me
对不起；请再说一遍；
eg. It's the plumber at the door.
修水管的工人在门口了。
Excuse me?
什么？
I said it's the plumber.
我说是修水管的工人。
eg. Excuse me for writing this mail to you with such tone, but I must express it like this.
请原谅我用这样的语气来写这封邮件给你，但我必须这样表达它。
2. keep sb. from sth./doing sth.
阻止（或防止、阻碍）…做；
eg. Fear is often what'll keep us from getting something done, let alone something great.
恐惧往往使我们不能把事情做好，更遑论把事情做卓越。
eg. She had to bite her lips to keep from laughter.
她只好咬着嘴唇忍住笑。
3. move in
迁入；搬来；
eg. I had the flat decorated quickly so that Philippa could move in.
我很快地把公寓粉刷了一遍，这样菲利帕就能搬进来了。
eg. We can't move in until the electricity has been laid on.
我们得等电源接通后才能搬进去。