单词	free element
释义	free element 单体元素
随便看	expansion sleeve bolt expansion slide valve expansion sliding block expansion slot expansion slots expansion soefficient expansion space expansion spacing expansion spending expansion spring expansion stage expansion stay expansion staybolt expansion steam trap expansion strain expansion strength expansion stress expansion strip expansion stroke expansion-stroke expansion structure expansion stuffing box expansion switch chamfered joint expansion switch feathered joint expansion switch scarfed joint 不问皂白不问青红皂白不间不界不闻不问不阴不阳不随以止不露圭角不露声色不露形色不露神色 41918 41919 41920 41921 41922 41923 41924 41925 41926 41927