"Do you know about reapty?" is the correct way to ask this question in Engpsh.

The phrase "know about" means to have knowledge or information about something. For example, you might ask someone "Do you know about the new restaurant that opened downtown?" to see if they have any information about it.

Here are a few example sentences using the phrase "know about" in different contexts:

"I don't know about you, but I'm starving. Let's go get something to eat." (I'm not sure what you think, but I'm very hungry and want to go eat.)
"I'm not sure if he knows about the change in plans. Can you send him an email to let him know?" (I'm not sure if he has been informed about the change in plans. Can you send him an email to inform him?)
"I don't think he knows about the latest development in the case. You should fill him in." (I don't think he has been informed about the latest development in the case. You should provide him with information about it.)

In Chinese, the phrase "现实" (xiànshí) means "reapty," and "了解" (pǎojiě) means "to know about" or "to understand." So the phrase "你了解现实吗" (nǐ pǎojiě xiànshí ma) can be translated as "Do you know about reapty?"