at

介系词

1. 1

   在、于表地点

   She is waiting for us at the station right now.

   她现在正在车站等我们。

2. 2

   在、于表时间

   The meeting will start at three in the afternoon.

   会议将在下午三点开始。

3. 3

   向、朝、对表方向或目标

   Someone threw a stone at the kitchen window last night.

   昨晚有人朝厨房的窗户丢石头。

4. 4

   对、对于表反应的对象

   Everyone was shocked at the news of his sudden resignation.

   大家对他突然辞职的消息都很震惊。

5. 5

   以、按表价格、速度或比率

   These shoes are now selling at half the original price.

   这双鞋现在以原价的一半出售。

6. 6

   处于、陷入表状态

   The two countries have been at war for three years.

   这两个国家已经打了三年的仗。

7. 7

   正在、在表从事的活动

   My parents are at dinner, so please call back later.

   我父母正在吃晚餐，请晚点再打来。

8. 8

   在…方面表能力或专长

   He is surprisingly good at remembering people's names.

   他在记人名这方面出奇地厉害。

9. 9

   在…岁时表年龄

   At sixteen she moved abroad to study music.

   她十六岁时就出国学音乐。