| 词汇 | 优等 |
| 释义 | 优等优等[yōu děng]1.■high-class; first-rate; excellent; top line; top quality; high quality; high grade 常用词组1.■优等汇率 fine rate;2.■优等品 high-class product;3.■优等生 top student;4.■优等证券 gilt-edged securities |
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