文章 老问题：in the playground or on the playground

...欢的学者之一，可惜去世得早。在其著作中只提到用 in the playground和 at the playground 都是正确的，前者侧重空间，后者侧重地点。At 侧重表示某个点这在Close的著作中已有阐述。赵教授就没提 on the playground 是怎么回事，遗憾！2. ...

问题 翻译：The stress can be on the auxiliary or the subje

The stress can be on the auxiliary or the subject.请问老师这个句如何翻译？

问题 求解at the open day（为何不用on the open day）

...of our guest speakers.He will make a speech about his experiences in China.The speech is going to be at 3 p.m.on 9 November.At the end of his speech,there will be 30 minutes for questions and answers.So,if you are interested in knowing more about China, you mustn’t miss the chance to meet David at...

问题 at the desk和on the desk的区别是什么

They are studying at the desk.和That book is on the desk.这两句话的区别是什么？真诚求问，谢谢大家！

问题 from含义理解困惑

...think people should know that life on Mars would be different from that on the Earth.=b)I think people should know the differences of the life on Mars from that on the Earth.书上说a)=b)。 对此，我有3个疑问：(1)是：句a)中life on Mars 没有定冠词the, 为何b)句中变成了加了...

问题 句子成分分析

What we're seeing now is history in the making. Britain's first woman prime minister, a conviction politician who's made no secret of the fact she believes the country has to change from top to bottom, going to the palace, presumably to tell her queen exactly that.以上是来自新闻广播的一...

问题 on the first day还是at the first day

请问一下，哪个是对的？on the first day of my holiday at the first day of my holiday谢谢！

话题 on the part of

话题 Based on the report

话题 live on the land

话题 go on the stage

问题 这里的were是不是应该用was

However, a Red Cross effort to bring in aid and evacuate residents from the shelling in Matiupol were frustrated for a second day in a row.这句话的主语是a... effort吧，后面是两个不定式作定语对吗？所以我认为were应该用was才对。还请老师指教！

问题 both in ideology and in the matter of cadres在句中充当什么成分

It was instrumental in bringing about the integration of Marxism with China's labour movement, and it paved the way, both in ideology and in the matter of cadres, for the founding of the Chinese Com­munist Party.请问 both in ideology and in the matter of cadres在句中充当什么成分呢？

问题 in / on / at the concert中的介词辨析

The students want to play their compositions ______ the concert.请问专家：这里应该填什么介词？in the concertn, on the concert, at the concert——哪个对？如何区分？谢谢!

问题 on behalf of sb/on sb's behalf

例句1. On behalf of the department I would like to thank you all.           我谨代表全系感谢大家例句2. Mr Knight cannot be here, so his wife will accept the prize on his behalf.           奈特先生不能来,因此由...