The verb 'upgrade' means to raise to a higher level or rank, or to improve the quality or usefulness of.
动词 'upgrade' 的意思包括提升、使升级或改良。
| 单词 | upgrade |
|---|---|
| 发音 | [ʌp'greɪd] |
| 释义 | vt. 提升；使升级；改良品种 |
| 词序 | 6016 |
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