| 词汇 | upgrade |
| 释义 | upgrade /`ʌpˏgred/ n. Ascent, as in a road. 升高；上升(如上坡路) on the upgrade 增加；改善；进步。 (过去式: upgraded; 过去完成式: upgraded; 现在进行式: upgrading) v.t. To raise or improve the grade of. 提高…之等级。 |
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