| 单词 | upgrade |
| 释义 | upgrade v. & n. --vtr. 1. raise in rank etc. 2. improve (equipment, machinery, etc.) esp. by replacing components. --n 1. the act or an instance of upgrading. 2. an upgraded piece of equipment etc. Phrases and idioms on the upgrade 1. improving in health etc. 2. advancing, progressing. Derivatives upgrader n. |
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