英语热门查询
wetwatererextinctionemberstranscendentalsinglenessscholarshipgrandconfidencefagfamiliarizewatercraftfencedhexadecimaladorncolicclamorouscorrectnessproudlysnuffleelseprotectivevictimhoodspartananswerencryptCleanserevaluationfroeplayersedimentspyinggrantingpungentapathydemoteMalonesaturationpenetrateheightvalueboredspecializeindiaimpellingfreakyhavingdealingsinscribewithheld
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keystone/
/
1.noun[c]
支柱，后盾，主旨
2.noun[c]
基石，拱心石，拱顶石