at
1
在, 于
used to show a particular place or position
- I saw him at the grocery store.
我在杂货店里看到了他。
- She is still waiting at the bus stop.
她还在公交车站等着。
- The concert will be held at the stadium.
音乐会将在体育场举行。
- The event will take place at the community center.
活动将在社区中心举行。
- The sign indicates the entrance at the museum.
标志指示博物馆的入口。
2
在
(computing) used in an email address to separate the name of the user from the location, written as '@'
3
在, 于
expressing the exact time when something happens
- Are you ready?The concert begins at 8 o'clock.
你准备好了吗？音乐会在8点开始。
- The doctor's appointment is at 11:20 AM.
医生的预约在上午11:20。
- The event is scheduled at 3:15 PM.
活动定于下午3:15举行。
- The store opens at 9 o'clock in the morning.
商店在早上9点开门。
- We have a reservation at the restaurant at 7:30 PM.
我们在餐厅的预订时间是晚上7:30。
4
在, 处于
used to specify a particular position in a range, degree, or measure
- The temperature stood at 30 degrees Celsius.
温度在30摄氏度。
5
在, 处于
used to describe a condition or state of being
- She was at peace with her decision.
她对自己的决定感到满意。
- The project is currently at a standstill.
该项目目前处于停滞状态。
6
在, 于
used to indicate an attribution or skill possessed by someone
- She is excellent at playing the piano.
她在弹钢琴方面非常出色。
- The team is good at strategizing during games.
团队在比赛中擅长制定策略。
7
在
used to indicate the specific target or recipient of an action or emotion
- He was angry at his brother.
他对他的兄弟很生气。
- They started shooting at civilians.
他们开始向平民开枪。
8
用, 以
used to indicate the tool, instrument, or method through which an action is performed
- They held him against his will at gunpoint.
他们违背他的意愿用枪指着他。