economize on sth
on后接节约的对象。
We need to economize on water during the drought.
干旱期间我们需要节约用水。
节省；节约
节约,节省；避免浪费或奢侈。；节俭地使用；节省。；有效地利用
to use money, resources, etc. carefully so that you do not waste them
节约,节省；避免浪费或奢侈。
To practice being economical (by using things sparingly or in moderation, and by avoiding waste or extravagance).
节俭地使用；节省。
To use frugally.
一般现在时
She economizes by using less water.
她通过少用水来节省。
一般过去时
They economized on electricity last winter.
去年冬天他们节约用电。
现在进行时
He is economizing his time.
他正在节约时间。
节约，节省
To save for a house, they decided to economize on dining out.
为了攒钱买房，他们决定节省外出就餐的开支。
用法提示：动词economize后接介词on，表示在某方面节约。
She economized by using public transportation instead of driving.
她通过乘坐公共交通而非开车来节省开支。
用法提示：使用过去式economized，后接by短语表示节约的方式。
Economizing on electricity can reduce your monthly bills.
节约用电可以减少你每月的账单。
用法提示：动名词形式Economizing作主语，后接介词on表示节约的对象。
on后接节约的对象。
We need to economize on water during the drought.
干旱期间我们需要节约用水。
及物用法，后接具体节约的东西。
She tried to economize every penny.
她试图节省每一分钱。
by后接节约的方式。
They economized by taking the bus instead of driving.
他们通过坐公交车而不是开车来节约。
grammar · medium
易错句子We should economize money.
正确表达We should economize on money.
动词 economize 是不及物动词，不能直接跟宾语，必须加介词 on 才能表示“节约某物”。
grammar · medium
易错句子We need to make economize.
正确表达We need to economize.
economize 本身就是动词，不应与 make 连用；直接使用动词原形作谓语即可。
economize是动词，意为“节约”；economical是形容词，意为“节约的”，修饰名词。
economize是动词，强调行动；economy是名词，指经济体系或节约的概念。
economize是动词，意为“节约”；economist是名词，指研究经济的人。
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