X字开头的单词或词组
x-ray diffraction cameraX-ray photon spectroscopyxanthoproteic reactionxerxerosis superficialisxylographerxylographicX-ray diffraction patternxanthoma multiplexxanthoma tuberosumxanthylicxiphisternalxylic acidX-ray diffractometryxiphocostalXiphophorus testx-ray spectrumxanthematinxenoparasitexylem raysXanthoxylum piperitumxiexylenobacillinxanthic calculusxerocollyriumxerophthalmia parenchymatosaxylidinic acidxanthoma diabeticorumxenon oxidexylocassiaxyloketosexylyl chlorideX-ray absorption spectrometryxanthoma palpebrarumxcgxylenol salicylateX-type groovexanthorhamninx-ray goniometerX-ray spectrometerxanthosis diabeticaxinhua/news/agency
