| 词汇 | economics |
| 词根词缀 | 词源： "science of wealth," 1792, from economic. 词根记忆： n. 经济学,经济情况He has written three books in economics.他已写了三本经济学方面的书. n. 经济学(economy经济+ics)[-ics表名词、,"学科,学术"] |
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