a. 经济上的, 实用的, 节省的
After debate and analysis of the average income, historians have agreed to disagree on whether there was rapid or slow economic growth during the Industrial Revolution.
四级 · CET-4 2026年6月 第1套
In a new study, we measured the excessive profits reported in tax havens that cannot be explained by ordinary economic activity such as employees, factories and research in that country.
六级 · CET-6 2026年6月 第1套
Unlike Land Life Company, this region-wide project makes the economic and business case for reforestation, even though they are after biodiversity conservation.
六级 · CET-6 2026年6月 第2套
One reforestation project bases its argument on economic benefits and investment returns.
六级 · CET-6 2026年6月 第2套
Economic returns can be derived from selling timber and non-wood products as well as carbon credits.
六级 · CET-6 2026年6月 第2套