英语词汇“tracer”的意思、释义、用法及双语翻译-时代网

词汇	tracer
释义	noun tracer bullets Radioactive tracers have been used to map the metabolic activity of the brain.
随便看	gen up genus geo- geo geocache geocacher geocacher geocaching geodata geodesic geodesics geoengineering geo fence geo-fence geofence geoffrey boycott geoffrey-boycott geoffreyboycott geoffrey chaucer geoffrey-chaucer geoffreychaucer geographer geographers geographic geographical 周行周角周诗周详周谨周身周轩周转周转房周转金周边周达周通周逸群周遍周遭周邦彦周重周长周阳周雅周顾周颂周风周髀算经

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