名词
中文翻译：反作用力
同义词：
['reaction', 'counteract']
例句：
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1.The scientist made a counter motion to theforce of gravity.
科学家对重力产生了反作用。
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2. The ship's engine counteredthe wind and kept it from overtakingthem.
船的引擎抵消了风力，使他们没有超车。
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3. Theprojector countered thedarkness with its bright beam.
投影仪用其明亮的光束对抗黑暗。