核心畫面
Picture a line on a chart , or a number on a screen lower month by month. Decrease is a measured word: it wants an amount, a starting point and a direction. English uses it both for the movement itself and for the size of the drop.
可以想成：圖表上一條往下走的線，或螢幕上一個逐月變小的數字。decrease 是個「量得出來」的字：它需要一個數量、…更多收起
可以想成：圖表上一條往下走的線，或螢幕上一個逐月變小的數字。decrease 是個「量得出來」的字：它需要一個數量、一個起點和一個方向。英文用它指那個往下的變化，也用它指下降的幅度。原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
decreaseverb/dɪˈkɹiːs/
- 1
Of a quantity, to become smaller.
- The quality of our products has decreased since the main designer left.
- 2
To make (a quantity) smaller.
- Let's decrease the volume a little so we can hear each other talking.
decreasenoun/dɪˈkɹiːs/
- 1
An amount by which a quantity decreases or is decreased.
- After six years of constant growth, the company reported a slight decrease in sales last year.
- One research team has recorded Baishui’s decrease at about 27 meters per year over the last 10 years.
- 2
businessknittingmanufacturingA reduction in the number of stitches, usually accomplished by suspending the stitch to be decreased from another existing stitch or by knitting it together with another stitch. See Decrease (knitting).
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。