| 主要翻译 | 
| keep [sb] up to date v exprverbal expression: Phrase with special meaning functioning as verb--for example, "put their heads together," "come to an end." |  (inform regularly) | 使…了解最新消息 
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|   |   | 使…跟上时代 
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|   | We'll keep you up to date with the latest business news. | 
| keep [sth] up to date v exprverbal expression: Phrase with special meaning functioning as verb--for example, "put their heads together," "come to an end." |  (update) | 使…保持更新 
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|   | It's important to keep your business website up to date. | 
| keep up to date v exprverbal expression: Phrase with special meaning functioning as verb--for example, "put their heads together," "come to an end." |  (stay informed) | 了解最新消息 
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|   |   | 跟上时代 
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|   | I read Vogue magazine to keep up to date with all the latest fashions. |