first classOur editors are putting together more complete content — check back in about 20 minutesfirst class名詞 · 1形容詞 · 1first class — noun名詞1. the best and most expensive travel accommodation1.名詞釋義the best and most expensive travel accommodation例句She always flies first class.first class — adjective形容詞1 解釋1. of the highest quality or standard1.形容詞釋義of the highest quality or standard例句They provide first-class service.