first-class

基本解釋

Offer it to the first-class houses.
把它寄給第一流的出版社。
What Harve needed, of all people, was a course in some first-class Kansas City business college.
哈維需要的，人人都一樣，是念一所第一流的堪薩斯市立商學(xué)院的課程。
That newspaper paragraph he had read so long ago had been true, after all. The first-class magazines did not pay on acceptance, and they paid well.
他很久以前在報(bào)上讀到的那一段話畢竟沒有錯(cuò)：第一流的雜志的確是一經(jīng)采用立即付酬的，而且稿酬從優(yōu)。

That was when twenty-five students in a class taught by Thomas Zurbuchen first talked about the idea.
The in class mid-terms--the grades will be roughly 10% problem sets, 20% first mid-term, 30% second mid-term, 40% final.
期中那次是隨堂考,在最后成績(jī)中,習(xí)題成績(jī)占10%,第一次期中占20%,第二次期中占30%,期末考試占40%
耶魯公開課 - 金融市場(chǎng)課程節(jié)選
It's a huge price to pay in a pass-no-record first semester class . And, you know who is most severe on the committee on discipline?
這個(gè)代價(jià)太大了，只為了,第一次學(xué)期通過一門無(wú)記錄的課程,你們知道著紀(jì)律委員會(huì),誰(shuí)最為嚴(yán)厲嗎？
麻省理工公開課 - 固態(tài)化學(xué)導(dǎo)論課程節(jié)選

If you describe something or someone as first-class, you mean that they are extremely good and of the highest quality.
You use first-class to describe something that is in the group that is considered to be of the highest standard.
First-class accommodations on a train, aeroplane, or ship are the best and most expensive type of accommodations.
First-class is also an adverb.
First-class is the first-class accommodations on a train, aeroplane, or ship.
In the United States, first-class postage is the type of postage that is used for sending letters and postcards.