动词
中文翻译：保持
同义词：
['maintain', 'sustain', 'preserve', 'hold', 'preserve']
例句：
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1. The team needs to keep the game going at a high level.
团队需要保持比赛在高水平上进行。
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2. She kept her promise and visited the museum on time.
她遵守承诺，准时参观了博物馆。
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3. Keeping up with the latest technology is essential for success.
跟上最新的技术是成功的关键。