有人可能會很好奇，到底什麼時候要用 reduce，什麼時候又要用 decrease 呢？雖然兩者差異不大，大部份的減少情況都可以用 reduce 來表示，而 decrease 則常用於＂可以增加的減少＂的這種變動情況。
減少英文造句練習
Love the earth, we should reduce garbage.愛地球，我們應該減少垃圾。
If you reduce the amount of time spent watching TV every day, you will have more available time.
如果你每天減少一些看電視的時間，你將會有更多可用的時間。
In order to reduce personnel expenses, the company decided to start layoffs next month.
為了減少人事支出，公司決定下個月開始裁員。
In order to reduce air pollution, we can take public transport.
為了要減少空氣污染，我們可以改搭大眾運輸工具。
In order to reduce friction with his family, Peter decided to move out.
彼得為了要減少與家人的摩擦，所以決定搬出去住。
Because of the shortage of raw materials, today's production decreased a lot.
因為原物料的不足，今天的產量減少了很多。
Since Pound became a father, he reduced the amount of time spent in overtime work.
自從龐德當了爸爸，他就減少在公司加班的時間。
Carter in order to reduce living expenses, he eat one instant noodles every day, resulting in malnutrition.
卡特為了減少開銷，他每天只吃一碗泡麵，結果造成營養不良。