名词
中文翻译：道路油
同义词：
['lubricant', 'grease']
例句：
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1.The truck's engine needs regular road oil changes to keep it running smoothly.
这辆卡车的引擎需要定期更换润滑油，以保持其顺畅运行。
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2.Road oil is essential for keeping the tires in good condition.
道路油对于保持轮胎的良好状态至关重要。
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3. The mechanic replaced the old road oil with a new one to prevent further damage to the engine.
机械师用新的润滑油替换了旧的，以防止对发动机造成进一步的损害。