单词	back-up ring
释义	back-up ring 支承环
随便看	systemic candidiasis systemic capillary leak syndrome systemic circuIation systemiccirculation systemic circulation systemic circulations systemic contamination systemic defence reaction systemic defoliant systemic disease systemic disruption systemic distortion systemic effect systemic embryology systemic error systemic exertion intolerance disease systemic factor systemic failure systemic financial crisis systemic fungicide systemic gain drift systemic grammar systemic heart systemic herbicide systemic hyalinosis 小部小隙沉舟小题大作小题大做小鸟依人小鹿触心头小黠大痴尐少少1 16086 16087 16088 16089 16090 16091 16092 16093 16094 16095