If someone is hard-hearted, they see that another person is hurting and they still do not care — or they will not let that pain change what they do. We use it about people who will not help, will not forgive, or who follow a rule even when it is cruel.

If someone is hard-hearted如果一個人鐵石心腸, they他們 see that another person is hurting看到別人在受苦 and they still do not care卻還是不在乎 — or they will not let that pain change what they do或是不會因為那個痛苦而改變自己要做的事。We我們 use it about people用這個字形容那些 who will not help不願意幫忙, will not forgive不願意原諒, or who follow a rule even when it is cruel或即使規則很殘忍也照著執行 的人

It is colder than strict. You can be strict and still care; hard-hearted means the caring is missing, or looks missing.

It它 is colder than strict比 strict（嚴格）更冷酷。You你 can be strict and still care可以很嚴格卻還是關心對方; hard-hearted鐵石心腸 means the caring is missing, or looks missing指的是那份關心不見了，或看起來不見了

Stories use it for kings, villains, and anyone who seems to have no soft place inside.

Stories故事裡 use it用這個字 for kings, villains, and anyone who seems to have no soft place inside形容國王、反派角色，還有任何看起來內心沒有一絲柔軟的人

The word feels a little old and bookish. Young people in casual talk more often say cold or mean.

The word這個詞 feels a little old and bookish感覺有點老派、書面。Young people年輕人 in casual talk在平常聊天時 more often say cold or mean比較常說 cold（冷酷）或 mean（壞心）

It is not a doctor's word about the heart in your chest. Though actually, people also throw it in anger at someone who is only being firm — a parent who will not buy a toy — which is looser than the tidy picture.

It它 is not a doctor's word不是醫生用來說 about the heart in your chest胸腔裡那顆心臟的用語。Though actually不過實際上, people大家 also throw it in anger也會在生氣時把這個字丟 at someone who is only being firm在只是態度堅定的人身上, — a parent who will not buy a toy像是不肯買玩具的父母 — which is looser than the tidy picture這種用法比前面說的整齊畫面要鬆散一些