动词
中文翻译：保持
同义词：
['maintain', 'preserve', 'sustain例句：1. The team needsto keep their performance up.（团队需要保持他们的性能。）2. She kept her promise and arrivedon time.（她遵守了承诺，准时到达。）']
例句：
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1. The team needsto keep their performance up.
团队需要保持他们的性能。
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2. She kept her promise and arrivedon time.
她遵守了承诺，准时到达。
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3. They kept the secret from everyone exceptfor a few trusted friends.
他们只把秘密告诉了少数几个信任的朋友。