名词
中文翻译：时刻包
同义词：
['momentum', 'momentary envelope']
例句：
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1.The scientist's research has provided a momentary envelope of new insights.
科学家的研究提供了新见解的短暂窗口。
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2. The team's performance was momentary enveloped by the unexpected rain.
团队的表现被突如其来的雨暂时掩盖了。
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3.The sudden change in weather caused a momentary envelope of uncertainty.
天气的突然变化引发了短暂的不确定性。