发带, 头带
a band of material worn around the head, typically to hold hair or absorb sweat.
:
• She wore a colorful headband to keep her hair out of her face.
她戴着一条彩色的发带，把头发束起来。
• Athletes often wear headbands to absorb sweat during workouts.
运动员在锻炼时经常戴发带来吸汗。
