radiologist
radioisotope
radiography
radiographer
radiograph
radiology
radish
radium
radius
radon
RAF
raffia
raffish
raffishly
raffishness
raffle
raft
rafter
raftered
rag
rag-and-bone man
rag-bag
ragamuffin
rage
ragged
raggedly
raggedness
raging
raglan
ragout
rags
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radiology / 9reIdI5ClEdVI; 9redI`BlEdVI/

n [U] scientific study of X-rays and other radiation, esp as used in medicine 放射学(尤指用於医学的).



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