英语热门查询
tittlenipamboevidentHungarytorquerworkmanshiptweezermonikerplasterunrealaloofnessrebusunificationtolerancefortunatesqueakproprietorgassymeatHOLIDAYabdominalonionmaverickingenuousshudderoutpouringleadmailingsteakrelationgreenerypedalmotorfibrosityairmanshipplaintextoldernipperpotentiometeranimationchilepurchaserconningfacialquashmisgivingculldormancyatavism
hydrogen/'haɪdrəʤən/
1.noun [化] [u]
氢