1. at:
l)在(某地点):
I live at 4O3 Boot Road.
我住在布特路403 号。
Let's meet at the station.
咱们车站见。
2)在(某场合):
He was at a conference.
他在参加一个会议。
I met him at a party.
我是在一个晚会上见到他的。
3)在(某时间，时刻):
Dinner was at one o'clock.
午饭一点钟开。
He joined up at fifteen.
他十五岁参军。
4)向(某方向，目标):
Let me have a look at the timetable.
我来瞧瞧时刻表。
What are you laughing at?
你们笑什么?
5)对……(说明引起某种情绪的原因):
He looked surprised at seeing us.
他看到我们显出很惊异的样子。
She feel glad at what he had said.
听了他的话她感到很高兴。
6)在(号召，邀请，请求)下：
He wrote it at our request.
他是在我们的请求下写的。
They came to China at our invitation.
他们是应我们邀请来华的。
7)处于(某种状态),进行(某种活动):
The azalea was at it's brightest.
杜鹃花开得正盛。
The two countries were then at war.
那时两国正在交战。
8)在(某方面):
He was very clever at drawing.
他画画很灵。
She wasn't much at letter-writing.
她不太善于写信。
9)表示价格、速度、数量等。
This was sold at $20 a pound.
它的售价是二十美金一磅。
They built the plant at top speed.
他们以最高速度建厂。
