{{Stub}} {{Grammar Box}} If you are trying to explain what you did after a certain event, you might want to use "以后" (yǐhòu) or "之后" (zhīhòu). After all, they do both mean "after," right? Well, it turns out that there are a few rules that you need to be aware of before you use them. == Similarity == Both indicates another event happened after a special time. these two words share a structure, so it is easy to see how they would be easily confused. Here's the structure: === Structure ===