文胸是女人穿在上身里面的衣服，用来保护和支撑胸部。

A 文胸 is a piece of clothing women wear inside the upper body to protect and support the breasts.

买文胸的时候，要选合适的大小，穿起来才舒服。

When buying a 文胸, you should choose the right size to ensure comfort.