话题 hands-on

话题 on that day

话题 on every Sunday

话题 on our block

话题 on a Saturday

话题 on the table

话题 spending on which

问题 arrive on the top of the house对吗

arrive at / in / on the top of the house这里应该用介词 on 而不是所谓的搭配 at / in，对吗？专家老师，请您解惑。

问题 on board a plane 中plane怎么理解

They arrived at Gatwick airport on board a plane chartered by the Italian government.老师好，介词短语on board  后面通常还会加"XX船"，请问加的这个名词作什么成分？

问题 短语hone in on 是什么含义

A point that Democratic presidential contenders like to hone in on as they attack Trump's economic policies. Economy and a government that works for all of us, not wealthy campaign contributors.上述句中出现了短语hone in on 是什么含义？如何使用？ 词典上没找到。

问题 翻译句子的问题

...oke of gunpowder, whether it is the "soldiers" in the front line or the masses of self-control, the whole country overcome the difficulties. 老师好！在这个句子中想用whether…or句型同时表达"不管是在前线的士兵还是自律的大众都在克服困难"...

问题 请问on和through的区别

这个第9题，正确答案是through，但是我翻看牛津词典，on和through都有by means of的意思，请问这两者有什么区别？在这里为什么选through？

问题 against 和 on/upon 这里可互换吗

He sat down beside Christina, propping his feet up on the railing, feeling the warmth of the sun against his face, able to relax for the first time in days.句中，against可否换成on/upon, 二者使用在本句中，含义究竟有何差别？

问题 on one’s own,by oneself,alone独自；区别

on one’s own,by oneself,alone独自；区别如：She lives on her own.她一个人生活。

问题 …times up on(over)比较句式

…times up on(over)这里的介词加在比较句式中名词前面吗？举例说明谢谢！