例句：
My own feeling is that we should buy the cheaper one.
我個人的意見是我們應該買較便宜的那個。
New cars don't come cheap.
新汽車沒有便宜的。
It has the double advantage of being both easy and cheap.
它具有既方便又便宜的雙重優點。
Cycling is a cheap way to get around.
騎自行車是一種省錢的旅游方式。
It'll work out cheaper to travel by bus.
算來還是乘公共汽車便宜些。