At on in什麼意思

"At," "on," and "in" are prepositions in English that are used to indicate position, time, or direction. Here's a brief explanation of their meanings and uses:

1. At:

   • Used to indicate a specific point or place: "She is at the bank."
   • Used before names of small places: "We're meeting at Mike's house."
   • Used to indicate an exact time: "The meeting starts at 9 a.m."
   • Used with verbs to indicate an action or state: "He is at work."

2. On:

   • Used to indicate a surface or position touching a surface: "The book is on the table."
   • Used for days and dates: "We're going on a trip on Monday."
   • Used for specific times of day: "We eat dinner on Sunday evenings."
   • Used for indicating means of transportation: "She flew on a plane to Paris."

3. In:

   • Used to indicate a location within a larger space: "The dog is in the house."
   • Used for general periods of time, especially years, months, and seasons: "She arrived in 2010." or "We're going to the beach in August."
   • Used for containers and buildings: "There is some milk in the fridge."
   • Used for states or conditions: "She is in love."

These prepositions can also be used in various idiomatic expressions and phrasal verbs, where their meanings might be more specific or figurative. Always consider the context in which these prepositions are used to determine their precise meaning.