1、“不忍心”英语怎么说？
英语中常用not have the heart (to do sth.)来表达：不忍心（做某事）
例句：
That's why I didn't have the heart to destroy them.
这也是我不忍心摧毁他们的原因。
She doesn't have the heart to tell him what had happened to it.
她不忍心告诉他发生了什么。—— 《西部世界》
知识点延伸：
1. have a good/kind heart 有一颗善良的心，心地善良
2. have a heart of gold 有金子般的心，心肠好
3. have a heart of stone 铁石心肠，冷酷无情
2、“舍不得”英语怎么说？
01、can't bear to
舍不得
例：
Time flies. I can't bear to leave you.
时间过的好快啊，我真舍不得离开你。
02、hate to do
“舍不得”其实就是“讨厌/不情愿做某事”，hate to do 可以部分承载这样的含义。hate to part with...讨厌跟…分别
例句：
I hate to part with you.=It is hard for me to part with you.
真舍不得跟你们分别。
I hate to leave this place.
我舍不得离开这个地方。
另外“不情愿做某事”还有一个句型：be reluctant/unwilling to do
上述句子也可以改成：I am reluctant/unwilling to leave this place.
3、“放在心上”英语怎么说？
放在心上可以用：take sth. to heart
例：
Anne took his criticisms very much to heart.
安妮把他的批评都记在心里。
反之Don't take sth. to heart 表达：别放在心上
例：
Don't take it to heart. He's that hard on everyone in the office.
别放在心上，他对办公室里的所有人都很刁难。
别放在心上还可以用：write it off ，write意为“写”，off是“抹掉”，把写的东西抹掉引申为“不要放在心上”当你的朋友因为不开心的事而烦恼时，可以用这句话来安慰他/她
例：
A: I made a mistake over the bill yesterday. I should take the blame.
我昨天把账算错了，我要为过失承担责任。
B: Write it off.
不要放在心上了。
最后：
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