hardness of heart

• 硬心肠

hardness of heart的用法和样例：

例句

1. Don't harden your heart against him.
   别对他硬心肠。
2. But these are euphemisms to ease the conscience of the callous.
   但这些都是旨在使那些硬心肠的人良心得到安慰的委婉语。