介词 - 顺序介词和条件介词

used to say that something will happen, when another thing has been concluded

在...之后

earlier than a particular action or event

在...之前

used to indicate what happens as a result of something

接着

used to indicate that something happens or is done before a particular event or point in time

之前

used to express a temporal relationship where one event follows another in chronological order

之后

used to convey that something is happening or exists after and often due to another event or action

在...之后

‌used to present an alternative suggestion in case something does not happen or succeed

否则

if a specific situation or event occurs

如果发生

if a particular situation occurs

如果发生