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, 当...时

earlier than a particular action or event

在...之前

used to indicate what happens as a result of something

接着, 随后

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

之前, 在...之前

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

之后, 随后的

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

在...之后, 由于...

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

否则, 如果没有

if a specific situation or event occurs

如果发生, 在...的情况下

if a particular situation occurs

如果发生, 在...情况下