The two of the brothers are always fighting. The older one visited his mother in the retirement home merely once a year, and self righteously, took it upon himself to call his brother an ingrate.
Examples (Wiktionary)
Mandarin
一条狗咬了他的腿。
一條狗咬了他的腿。
yī tiáo gǒu yǎo le tā de tuǐ .