callowadj.未成熟的;缺乏经验的
calligraphyn.书法
callousedadj.变得无情的;变硬的;结茧的动词callouse的过去式和过去分词形式.
callous ulcer胼胝性溃疡
calloused hands有老茧的双手
callous stenosis[医] 胼胝性狭窄(子宫颈)
"a callous indifference to suffering"
"cold-blooded and indurate to public opinion"
"calloused skin"
"with a workman's callous hands"