狠心hěn xīn
callous, heartless狭隘xiá ài
narrow, tight, narrow minded猖狂chāng kuáng
savage, furious猛烈měng liè
fierce, violent (criticism etc)略微lüè wēi
a little bit, slightly真挚zhēn zhì
sincere, sincerity确切què qiè
definite, exact, precise神奇shén qí
magical, mystical, miraculous