他是个苛刻的批评家，但却是个非常善良的人。He was a stern critic but an extremely kindly man.他粗暴的外表下藏着一颗非常善良的心。His gruff exterior concealed one of the kindest hearts.我爱上他，是因为他秉性善良。I fell in love with him because of his kind nature....
Biotite is a subordinate constituent of the mafic and ultramafic rocks generally.黑云母一般是镁铁质及超镁铁质岩石中的次要成分.Late Precambrian mafic dyke swarms are extensively developed in the central North China Craton.华北克拉通中部广泛发育晚前寒武纪镁铁质岩墙...