aste 经济，经济状况；节约，节省
e.g.
the economy of the world is in recession .世界经济处于衰退之中。
his views on knowledge economy have been accepted with many people.
他关于知识经济的观点得到很多人的认可。
we need to make substantial economies.我们要厉行节约。
she writes with a great economy of words.她写作文字非常简练。
构词解析：
economic 有资源难易程度:★★★★★★★★★★★★★★★
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