1. 電子商務 electronic commerce

造句練習：在數(shù)字時代，電子商務在經濟領域扮演著越來越重要的"作用。

參考答案：In digital era, electronic commerce plays an increasing role in the field of economy.

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2. 投資 investment

造句練習：按照國際慣例，在一個國家教育投資應該占其國民生產總值的4%。

參考答案：In line with international convention, education investment in a country should account for 40 percent of Gross Domestic Product (GDP for short).

3. 購買力 purchasing power

造句練習：經濟的發(fā)展使國民的購買力大幅提升，從而有更多的錢用于教育、旅游、日常開銷等。

參考答案：Economic growth brings citizens greater purchasing power which makes it available for them to cover education, travel，daily expenses and so forth.

4. 消費 v. consume ;n. consumption

造句練習：在人們生活水平大幅提高的今天，更要倡導理性消費。

參考練習：Today while living level are greatly advanced, rational consumption should be advocated even more.