“能不能”是用来问别人可不可以做某件事的说法，也常常用来客气地请求帮忙。

"能不能" is used to ask if someone can do something and is often used politely to request help.

它由“能”和“不能”组成，意思差不多是“可以吗？”

It consists of "能" and "不能", meaning roughly "Is it possible?"