to keep up to: to prevent from falling below (a level, standard, principle, etc.); to keep informed of. Also intransitive for reflexive.
| 单词 | θ96986 |
| 释义 | the world > time > change > absence of change, changelessness > maintaining state or condition > maintain [verb (transitive)] > maintain to a level or standard (1) to keep up to1712 to keep up to: to prevent from falling below (a level, standard, principle, etc.); to keep informed of. Also intransitive for reflexive. |
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