rú / guǒ / yí / ge / rén / zhī / ēn / bù / bào / bié / rén / yǐ / hòu / jiù / bù / yuàn / yì / zài / bāng / zhù / tā / le

如果一个人知恩不报，别人以后就不愿意再帮助他了。

If someone is ungrateful, others will no longer be willing to help them.