背心
How to Understand
背心 (bèi xīn) is a type of clothing that covers the upper body, typically worn as an inner layer. It is similar to a vest or undershirt in Western fashion, but may vary in style and thickness depending on regional preferences.
The character 背 (bēi) originally meant 'back' or 'to carry,' while 心 (xīn) means 'heart.' Together, they form a term that literally translates to 'back heart,' possibly referring to the garment's position on the body or its function of providing warmth to the torso.
背心 is commonly worn in China during warmer months or as an undergarment in colder weather. It is also used in sports and physical activities for comfort and breathability. The word can sometimes refer to a more formal or traditional garment, depending on context.