Discussion of 以后/以後 [yǐ hòu] after, afterwards, later - Trainchinese

1 - 1. Referring to something that happened in the past, or something that is going to happen in the future: 2. 以后 is usually used after a point of time or a period of time Examples: 十个小时以后他们终于到达了目的地。 [phr] Ten hours later they finally arrived at their destination. 来中国以后，我看过两次京剧。 [phr] After coming to China, I have watched Peking Opera twice. 以后我要跟你一起练习普通话。 [phr] From now on I will practice Putonghua together with you. 我走以后小王会来接班。 [phr] After my leave Xiao Wang will take my duty. 2 - 以后 vs 然后 1. 以后 is a noun indicating time. You can add a period of time or a point of time before 以后, e.g. 三个星期以后 5点以后 You can use 以后 as the subject or the object of a sentence, e.g. 我不关心以后。 2. 然后 cannot be used in these ways. 然后 is a conjunction that connects two phrases or clauses, e.g. 我打算先去超市，然后和你一起回家。 3 - In this post, we discuss the difference between 之后 and 以后. 之后 can refer to time (most cases), as well as location (this usage is quite rare). Examples: E.g.游行时我们班的队伍走在三班的队伍之后。[phr] In the parade, our class marched after Class Three. (Location) E.g.她毕业之后当了律师。 [phr] She worked as a lawyer after her graduation. (Time) 之后 can also be used at the beginning of the sentence, meaning after the action or incident which is mentioned before: E.g. 一开始，我先简单地讨论了行动方案的大纲(=Action 1)。之后，我又对具体的措施进行了详细的介绍(=Action 2)。(phr) At the beginning, I briefly discussed the outline of the action plan. After that, I gave a detailed explanation of the specific solutions. 以后 cannot refer to location. Only time. When referring to time, it means either: From now on: 我保证，以后不迟到了。 [phr] I promise that I will not be late in the future. Or, after a certain time: 下过雨以后天气凉快了很多。 [phr] It's very cool after the rain. 4 - When should I use 以后 (yǐhòu) instead of other words such as 后来 (hòulái)? 5 - Are there any formal or informal situations where I should use 以后 (yǐhòu) instead of other words? 6 - How does 以后 (yǐhòu) change in different contexts?

1 - 指涉过去发生之事或未来将要发生之事：
2. '以后'一词常用于时间点或时间段之后，例如：
- 十个小时以后，他们终于抵达了目的地。[短语] 十个小时以后，他们终于抵达了目的地。
- 来到中国以后，我曾观赏京剧两次。[短语] 来到中国以后，我曾观赏京剧两次。
- 从今往后，我将与你共同练习普通话。[短语] 从今往后，我将与你共同练习普通话。
- 我离去之后，小王将接替我的职责。[短语] 我离去之后，小王将接替我的职责。
3 - '以后'与'然后'之别：
1. '以后'作为时间名词，可在其前添加时间段或时间点，例如：三个星期以后、五点以后。'以后'可用作句子的主语或宾语，例如：我不关心以后。
2. '然后'不可如此使用。'然后'为连接两个短语或从句的连词，例如：我计划先去超市，然后与你一同回家。
4 - 在本文中，我们探讨'之后'与'以后'的差异。
'之后'可指时间（大多数情况），以及地点（此用法较为罕见）。例如：
- 游行中，我们班级的队伍位于三班队伍之后。[短语] 游行中，我们班级的队伍位于三班队伍之后。（地点）
- 她毕业后成为一名律师。[短语] 她毕业后成为一名律师。（时间）
'之后'亦可用作句首，指提及之前的行为或事件之后：
- 最初，我简要地讨论了行动计划的大纲（=行动1）。随后，我对具体措施进行了详细阐述（=行动2）。[短语] 最初，我简要地讨论了行动计划的大纲（=行动1）。随后，我对具体措施进行了详细阐述（=行动2）。
'以后'不能指地点，仅指时间。在指时间时，意味着：
- 从今往后：我保证，今后不再迟到。[短语] 我保证，今后不再迟到。
- 某段时间之后：雨后天气变得凉爽多了。[短语] 雨后天气变得凉爽多了。
5 - 在何种情况下应使用'以后'而非'后来'等词语？
6 - '以后'在不同语境中的变化如何？