How can one bear to do something so cruel or unkind? Be unable to bring oneself to do something due to moral reluctance or empathy.
看到被遗弃的小动物在雨中瑟瑟发抖，我们于心何忍不去帮助它呢？
Seeing the abandoned small animal shivering in the rain, how could we bear not to help it?
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