[ U ] the process of making a substance pure提炼;提纯;精炼
[ C or U ] a small change that improves something(精细的)改进,完善
[ U ] a quality of politeness and education文雅;高雅;有教养
👨🏻🏫 Mr. Ng 劍橋詞典 📚 – cambridge.mister5️⃣.net切換為繁體中文