經濟艙的用法和樣例：
例句
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我坐經濟艙旅遊是因為便宜。
I travel economy class because it is cheaper. -
我要一張3天回程的經濟艙來回票。
I'll need an economy class, three-day return. -
一個經濟艙座位，對嗎？
One economy class seat, is that right? -
他說經濟艙太不舒服了，所以外出旅遊他總是坐頭等艙。
He always travels first class, because he says tourist class is too uncomfortable.
