改善;精炼vv
re(一再) + fine(纯的; 精美的) → 精炼, 提纯记忆
1 refine on精于;改进
1 Car makers are constantly refining their designs..汽车制造商在不断完善他们的设计。
2 oil refining.石油的提炼
更新时间:2025-04-03 14:30:22