**形容词 (adjective)**:指某物因长期使用而破旧不堪,或指某人因过度劳累而精疲力竭。
/ˌwɔːrn ˈaʊt/
These shoes are so worn-out that I need to buy a new pair.
这双鞋太破旧了,我需要买一双新的。
After working double shifts for an entire week, she felt completely worn-out and could barely keep her eyes open during the meeting.
连续上了一整周的双班后,她感到精疲力竭,在会议中几乎睁不开眼睛。
worn-out 由 worn(wear 的过去分词)和 out(表示"彻底地、完全地")组合而成。wear 源自古英语 werian,意为"穿戴、使用",逐渐引申出"磨损"的含义。加上 out 后,强调"完全磨损、耗尽"的状态。该词从描述物品的物理磨损,后来也被用于形容人的身心疲惫。