Postreduction
后減數
??? 情景例句
We can write letters. It's cheaper than calling.
我們可以寫信就好，那比打電話便宜。
A cat has nine lives.
貓有九條命。
and no father is confronted with his inability to 'buy'an education for his child.
也不存在父親無力為孩子支付教育費用而犯難的問題。