noun🔗Share赛马场，跑道。 A course over which any type of races are run."The horses ran very fast around the racetrack. "马匹们在赛马场上飞快地奔跑。sportraceentertainmentplacevehicleChat with AIVocabulary GamePractice Reading
noun🔗Share跑道，环形侵蚀地貌。 A characteristic circular erosion pattern in deposition processes."The satellite image showed a clear "racetrack" around the volcano, indicating where repeated flows of lava had eroded the land in a circular pattern. "卫星图像显示，火山周围有一个清晰的“跑道”状环形侵蚀地貌，表明反复流动的熔岩以环形方式侵蚀了土地。geologynatureenvironmentChat with AIVocabulary GamePractice Reading
