X字开头的单词或词组
xenopsinxistorxenograftxanthan gumXMPX RemoteX-sectionX-filmXimeniaxanthinxerotripsisxenophoniaX-componentxylocarpxenophobiaxylanx-ray platesxenophobexerosinx raysxyleninXANESXNSxtalXmodemXenopusx-ray tubeX-ray filmxanthousxylonxanthalinexanthoproteic indicesxiphinXEDITxenolX-coordinatexerophytexanthorrhoeax-ray cameraX particleXinhuaxiphoid