无动于衷的

He made an affectation of indifference.

他装出动于衷样子。

The miser was untouched by the poor man’s story.

那个吝啬鬼对那穷人叙述动于衷。

He was insensitive to her grief.

他对她动于衷。

The younger ones are more stoic, wondering if the supply line of spaghetti carbonara and shepherd's pie will be interrupted.

年幼儿子则更加动于衷，他们关心只是意大和牧羊人馅饼供应会不会中断。