heartlessness的音標(biāo)為["hɑ?tnl?s]，基本翻譯為“無情；冷漠”。

速記技巧：可以將單詞拆分記憶，"heart（心）+lessness（名詞后綴，表示缺乏某種性質(zhì)）組合起來就是“無情；冷漠”的意思。

Heartlessness這個詞的詞源可以追溯到拉丁語和希臘語，意為“缺乏愛心”或“無情”。它的詞形變化形式包括復(fù)數(shù)形式（heartlessnesses），過去式（heartlessnessed）和過去分詞（heartlessnessed）。

相關(guān)單詞：

1. Heartlessness - 無情，冷酷，殘忍

2. Cruelty - 殘忍，殘酷

3. Indifference - 冷漠，漠不關(guān)心

4. Callousness - 冷酷無情，麻木不仁

5. Rage - 憤怒，狂怒

6. Fury - 狂怒，狂暴

7. Apathy - 冷漠，無動于衷

8. Callous - 冷酷的，無情的

9. Heartless Deception - 無情欺騙

10. Heartless Betrayal - 無情背叛

這些單詞都與heartlessness有著某種程度的關(guān)聯(lián)，它們都反映了人類情感中的冷酷、無情和殘忍的一面。

常用短語：

1. heartless cruelty

2. lack of empathy

3. callousness

4. indifference

5. heartlessness towards

6. be heartless

7. unfeeling

例句：

1. He showed no heartlessness in the way he treated his victims.

2. She was heartless towards her parents" disappointment.

3. His indifference to others" suffering was truly heartless.

4. She had a callousness towards animals that was truly heartless.

5. He lacked empathy and was always heartless in his actions.

6. It"s important to remember that we should not be heartless with others" feelings.

7. She was unfeeling towards her own pain, showing no empathy or compassion.

英文小作文：

Heartlessness can be a destructive force in our lives, whether it"s towards ourselves or others. We all experience moments of heartlessness, whether it"s due to our own selfishness or the actions of others. However, it"s important to remember that we should strive to be kind and compassionate, even in the face of adversity. It"s only by embracing empathy and understanding that we can truly overcome our own heartlessness and become better people. When we show kindness and compassion, we not only help others, but we also help ourselves to become more understanding and empathetic individuals.