及物動詞：使減少、降低、加熱使…變稠
常見搭配詞：
- reduce something (from…) to…
將某物的數量(從…)減少到… - reduce something by 數量
減少、下降多少 - reduce the size of something
減小尺寸 - reduce the amount of something (不可數名詞)
降低、減少數量 - reduce the number of something (可數名詞)
降低、減少數量 - reduce the cost of…
降低成本 - reduce the risk of…
降低風險 - reduce the impact of
減輕影響 - reduce stress/anxiety/tension
減少壓力/焦慮/緊張 - reduce waste/pollution
減少廢物/污染 - reduce speed
降低速度
例句：
- The new highway should reduce traveling time from an hour to 15 minutes.
新高速公路應該可以將行車時間從一個小時減少到 15 分鐘 - The city was reduced to ruins.
這座城市淪為廢墟 - The workforce has been reduced by half.
勞動力減少了一半 - He is trying to reduce expenses.
他正在努力減少開支 - The new design reduces the size of the device, making it more portable.
新設計讓設備變小，使其更加便於攜帶 - To improve their health, they decided to reduce the amount of sugar in their diet.
為了改善健康，他們決定減少飲食中的糖分 - The yoga class was designed to help participants reduce stress and tension.
瑜伽課旨在幫助參與者減輕壓力和緊張 - Regular exercise and a healthy diet can help reduce the risk of heart disease.
定期運動和健康飲食有助於降低患心髒病的風險 - The company has taken steps to reduce the impact of its operations on the environment.
那公司已採取措施減少其運營對環境的影響 - The driver reduced speed as they approached the sharp turn in the road.
當他們接近道路的急轉彎時，司機降低了車速 - Reduce the sauce by boiling for ten minutes.
煮十分鐘減少醬汁
同義詞：
- lower 降低、使下降 vt. 專門用於描述高度、位置或價值的降低
- cut 減少、削減 vt. 突然或急劇減少，通常是有意行動的結果
- lessen 減少、降低 vt. vi. 使某物變小或變弱； 變得不那麼強烈或不那麼頻繁
- diminish 減少、降低 vt. vi. 大小、數量、強度或重要性逐漸或緩慢減少
- decrease 減少、降低 vt. vi. 在大小、數量或程度上變小; 降低數量或價值，通常可以和reduce互換使用，但“reduce”的含義稍強一些
- shrink 縮小、變小 vt. vi. 尺寸減小，通常是由於失去水分或受熱造成的
- weaken 削弱 vt. vi. 強度或功率的降低
不及物動詞：減少、下降、變稠
例句：
- Her weight reduced two month after she stopped eating sugar.
停止吃糖兩個月後，她的體重減輕了 - Simmer until the liquid has reduced by about one fourth.
用文火煮至液體減少約四分之一
衍生字：
- reducible 可減少的、可縮減的 adj.
- reduction 減少、降低 n.
- reductive 過度簡化的 adj.
- reductionism 過度簡化 n.
