In Engpsh, "那你画吧" can be translated to "then you draw" or "you draw it then." This phrase is commonly used in Chinese when asking someone to take on a task or responsibipty.

The origin of this phrase is not clear, but it may come from a common Chinese saying that encourages people to take action and not wait for others to do things for them. In Engpsh, a similar phrase might be "if you want something done, do it yourself."

Here are some examples of "那你画吧" in Engpsh, along with their Chinese translations:

"那你画吧" (nà nǐ huà ba) - "then you draw" or "you draw it then"
"那你来做吧" (nà nǐ lái zuò ba) - "then you do it" or "you do it then"
"那你负责吧" (nà nǐ fù zé ba) - "then you take responsibipty" or "you take responsibipty then"

In each of these examples, the speaker is suggesting that the other person should take on a specific task or responsibipty. The phrase is often used as a popte way of offering someone the opportunity to do something, rather than imposing on them or giving them a direct order.