单词	deadly lecture
释义	deadly lecture 枯燥无味的讲座
随便看	production record pro-duction record production records production recovery production region production registry production registry system production-related production relation production relations production relationship production reliability acceptance test Production Reliability Demonstration Test production rate production rate change cost production rate decline production-rate history Production Rate Index production rate in ultrasonic machining production rate limit production rate per hour production rate per person production rates production ratio production ration