动词短语
中文翻译：引擎被调低了
同义词：
['engine cut back', 'engine down']
例句：
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1.The car's engine throttled back as it slowed down.
随着汽车减速，发动机被调低了。
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2. The pilot throttled back the jet engines to conserve fuel.
飞行员降低了喷气发动机的功率以节省燃料。
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3. The team decided to throttle back on expenses and focus on quality.
团队决定减少开支，专注于质量。