She soon acquired a reputation as a first-class cook.(她不久就獲得了頂級廚師的名聲。)

She always travels first-class regardless of expense.(無論費用多高她總是乘頭等艙。)

This ticket does not entitle you to travel first class.(你拿這張票不能坐頭等艙。)

It costs a fortune to fly first class.(乘坐飛機頭等艙要花一大筆錢。)

I had just enough time to finish eating before the bell rang and I was off to my first class.(我在鈴響前剛好有時間吃完，然后就去上第一節課了。)

We always travel first class.(我們總坐頭等艙旅行。)

First class costs more.(第一類郵件郵資較高。)

They are entitled to first class travel.(他們有權享受頭等艙旅行。)

He sat quietly in the first class cabin of the flight looking tired.(他靜靜地坐在班機的頭等艙內，看上去有些疲憊。)

She was awarded a first-class degree in English.(她獲得一級優等英語學位。)