单词	PET scan
释义	PET scan noun ˈpet-  : a sectional view of the body constructed by positron-emission tomography PET scanner noun PET scanning noun Word History First Known Use 1980, in the meaning defined above Medical Definition PET scan noun ˈpet-  : a sectional view of the body constructed by positron-emission tomography
随便看	rhyncostylises rhyncostylisses rhynia Rhyniaceae rhyniaceaes rhyniae rhynias Rhynocheti Rhynsburger rhyo rhyodacite rhyolite rhyolites rhyolitic rhyotaxitic texture rhyparographer rhyparographers rhyparographic rhyparography Rhyssa rhyta rhythm rhythm and blues rhythm band rhythm method

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。