"one who rides," Old English ridere "rider, trooper, knight, mounted warrior," agent noun from ride (v.). Meaning "clause tacked on to a document after first draft" is from 1660s. Related: Riderless.
中文解释
1. rider=附加条款应该这么理解：骑在正式条款上的东西→附加条款.
实用例句
1. He was caught out while lapping a slower rider.
他在套圈超越一位落后的车手时出了错。
来自柯林斯例句
2. As its rider tried to free it, the horse kicked out.
骑手想松开那匹马时，它乱踢乱蹬。
来自柯林斯例句
3. Both horse and rider were dripping with sweat within five minutes.
没过五分钟，马和骑手都大汗淋漓。
来自柯林斯例句
4. A cyclist crashed when he touched wheels with another rider.
一个骑车人与另一辆自行车车轮相碰后摔倒在地。
来自柯林斯例句
5. She dreamed of being a bareback rider in a circus.