For example, if Zhihu is already registered and you register to apply for Zhihu.com, that won’t work. Because "net" is a general word in this category, adding it means not adding it. Moreover, the name "Zhihu" is already too famous, and it will not be easy for it to pass the review if you add any words.

To prevent your example from being inappropriate, let’s go back to your question “The two words for trademark are similar, can it be passed by adding another word?”

The answer is: not necessarily, actual analysis of the actual name . For example, "Little Flower" has already been registered, and you can register "Little Cat" again, that's fine.

The above is easy to understand, right?