单词	radon seed
释义	radon seed [医] 氡小管
随便看	distance-sink-tube distance sink tube distance sleeve Distance Snob distance starter distance striking distance structure distance study distance sum measurement distance-sum measurement distance sum measurement system distance survey distance surveying distance swimming distance table distance tariff distance teaching distance-teaching distance test distance theodolite distance thermometer distance thermometre distance throw distance tie bolt distance-time curve 米部籴籵籶籷籸籹籺类类1 ナイフナイフクナイフクナイフンナイフ［knife］ナイブナイブコクハツナイブリュウホナイブンナイブン