动词
中文翻译：维持
同义词：
['maintain', 'preserve', 'sustain']
例句：
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1. The team needs to maintain a high level of performance throughout the season.
这个团队在整个赛季都需要保持高水平的表现。
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2. The scientist is trying to preserve the ancient artifacts for future generations.
这位科学家正试图为未来的世代保存这些古老的文物。
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3. The company aims to sustain its growth by investing in new technologies.
该公司通过投资新技术来维持其增长。