tā / shòu dào / bié rén / bāng zhù / què / bù zhī / gǎn ēn / shèn zhì / wéi ēn fù yì / zhēn shì / lìng rén / hán xīn

他受到别人帮助却不知感恩，甚至违恩负义，真是令人寒心。

He received help from others but didn't appreciate it, and even acted against his benefactor—it's really disappointing.