have no heart的用法和樣例：
例句
- He was a despot with a heart of granite.
他是個鐵石心腸的暴君。 - Mrs. Macbeth has a heart as hard as flint.
麥克白夫人生來一副鐵石心腸。 - She has no feeling for the suffering of others.
她對別人的痛苦沒有同情心。 - I forgive those ancestors who had no compassion and therefore failed to aid others in need at the time that they lived.
我原諒那些沒有同情心，從而未能在他們在世的時代幫助需要幫助的其他人的祖先。
