
好词典

源自古英语'on',与荷兰语'aan'、德语'an'同源,源自原始日耳曼语*ana,最终源自原始印欧语*h₂en-(在...上)。
❶ 表示继续或持续进行某个动作,指某事物处于活动或运行状态。
“Keep on working until you finish.”
(继续工作直到你完成。)
“The lights are still on.”
(灯还亮着。)
❶ 表示穿着或佩戴的状态,指衣物或饰品正被使用。
“Put your coat on before going out.”
(出门前穿上外套。)
“She had her glasses on.”
(她戴着眼镜。)
on and off — 断断续续地,表示某事不时发生但不是持续进行。
“It rained on and off all day.”
(雨断断续续下了一整天。)
on time — 准时,指在预定或规定的时间到达或完成。
“The train arrived on time.”
(火车准时到达。)
on purpose — 故意地,表示某行为是有意为之而非偶然。
“He broke the vase on purpose.”
(他故意打碎了花瓶。)
on fire — 着火;也可比喻非常成功或表现极佳。
“The building was on fire.”
(大楼着火了。)
on the other hand — 另一方面,用于提出相反或不同的观点。
“It's expensive, but on the other hand, the quality is excellent.”
(它很贵,但另一方面,质量非常好。)