on time
准时
on fire
着火
on purpose
故意
on sale
打折
on hold
保持
on vacation
度假
She is working on a project.
她正在做一个项目。
The cat is sleeping on the bed.
猫正在床上睡觉。
He put on his coat before going out.
他出门前穿上了外套。
The book is on the table.
书在桌子上。
They are going on a trip next week.
他们下周要去旅行。
The teacher is writing on the whiteboard.
老师正在白板上写字。
She is standing on the platform waiting for the train.
她站在月台上等火车。
The restaurant is on the corner of the street.
这家餐厅在街角。
He is on the phone with his boss.
他正在和他的老板通电话。
The children are playing on the playground.
孩子们在操场上玩耍。
Accepted authority rests first of all on reason.
权威首先应该建立在理性的基础上。
来源: The Little PrinceBeing alone means not inflicting yourself on others.
独自一人意味着不向别人施加压力。
来源: Listening DigestHe studied for his degree on and off for 75 years.
他断断续续学习了75年的时间。
来源: AP Listening Compilation June 2015The Times ran an article on it.
《泰晤士报》还为此写了一篇关于它的文章。
来源: Keep your English up to date.Well, you may have hit the nail on the head.
好吧，你还能说得更一针见血一些的。
来源: Science 60 Seconds Listening Compilation February 2014Trump tweeted again on Sunday about the issue.
周日，特朗普再度就此事发布推特。
来源: Battle CollectionChu is currently on visit to the mainland.
朱立伦正在内地进行访问。
来源: CRI Online May 2015 CollectionAre we even on your list of priorities?
孩子们还是你们的优选名单吗？
来源: United Nations Youth SpeechThere's a few of us going later on.
我们待会要去。
来源: Downton Abbey Detailed AnalysisSales taxes, especially on essential items, are considered regressive.
销售税，特别是必备物品的销售税被认为是递减税。
来源: Economic Crash Course探索常用高频词汇