a. 有效率的, 能干的
Organic farming is much less efficient when it comes to land use, although yields vary considerably depending on the crop.
四级 · CET-4 2026年6月 第1套
"Since young children have few monetary resources they control independently, it is the basic approaches and skills which are modelled, discussed and demonstrated by parents that are likely to be influential levers, breeding efficient habits and practices," it says.
六级 · CET-6 2026年6月 第3套
H) The truth is that in fairly dense areas, bikes are more efficient at moving people around.
四级 · CET-4 2025年12月 第1套
agriculture over the past 70 years have made livestock production more efficient and less greenhouse gas-intensive.
六级 · CET-6 2025年6月 第2套
Technological advances and changes in social behavior enable us to make more efficient use of the assets that we already have.
六级 · CET-6 2025年6月 第3套