c. 1500, from adjectival use of past participle of wear (v.); from Old English geworen. Worn-out "exhausted by wear, made ineffective by overuse" is attested from 1610s in reference to things, c. 1700 in reference to persons.
权威例句
1. Before the race, he is fine. But afterwards he is worn out.
赛前他状态很好,赛后就筋疲力尽了。
2. To use a well-worn cliche, it is packed with information.
说得老套一点,其内容翔实。
3. The flagstones beneath their feet were worn smooth by centuries of use.
他们脚下的石板路经过数百年的踩踏,磨得光溜溜的。
4. Steel cable will be used to replace worn ropes.
将用钢缆替换磨损的绳索。
5. Before you is a well-worn path of beaten earth.