孝心

zhèng míng xiào xīn

证明孝心

demonstrate one's filial piety

tā yòng le yī gè wǎn shang xiàng mǔ qīn biǎo dá xiào xīn

他用了一个晚上向母亲表达孝心。

He spent the whole evening assuring his mother of his love and devotion.

tā xiǎng xiàng fù mǔ biǎo xiào xīn

他想向父母表孝心。

He wants to show filial piety to his parents.