He didn't have the heart to [ couldn't bear to ] turn down their request.

他不 忍心 拒绝他们的要求.

《现代汉英综合大词典》

As doctors, how can we have the heart to watch patients suffer pain and do nothing?

我们作大夫的难道忍心看着病人受痛苦 吗 ?

《现代汉英综合大词典》

We knew the news all the time but did not have the heart to tell her.

我们一直知道这消息,但不忍心告诉他.

辞典例句

I didn't have the heart to refuse his request.

我不忍心拒绝他的要求.

互联网

We cannot have the heart to kill the dog.

我们不忍心弄死这条狗.

互联网

How could you have the heart to kill a dog?

你怎么忍心杀狗 呢 !

互联网

I did not have the heart to refuse the child's request.

我不忍心拒绝孩子的要求.

互联网

How can you have the heart to disappoint your parents?

你怎能忍心使你父母失 呢 ?

互联网

Have the heart to do sth.

[常用于否定句中]有勇气(做某事),忍心(做某事 )

互联网

The child was in obvious need. Who could have the heart to refuse him?

这个孩子显然十分贫困,谁能忍心拒绝他 呢 ?

互联网

The teacher didn't have the heart to punish the youngest of the class.

老师不忍心惩罚班里最小的孩子.

互联网

I don't know how you can have the heart to to the poor child.

我不知道你怎么能忍心拒绝那个可怜的孩子.

互联网

How can you have the heart to drown such a darling little kittens?

你怎能那么忍心把这支可爱的小猫淹死?

互联网