adj.第二流的;次要的;第二地位的;二类邮件的;
例句:
I hate being treated as a second-class citizen.
我痛恨被当作二等公民对待.
They spent the night in a noisy second-class hotel.
他们在一家吵闹的 下等 旅馆里度过了这一夜.
In second class the fare is £85 one-way.
二等车厢单程票价是85英镑。