n. 材料,原料;素材;布,织物;适当人选;
adj. 物质的;肉体的;重要的,决定性的;辩证的,推论的;
🗣️ 情景例句
I'm afraid so.
不敢当。
The falling out of lovers is the renewing of love.
情人越吵越亲密。
Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret.