他对这件事情无动于衷。
tā duì zhè jiàn shìqíng wú dòng yú zhōng 。
He is indifferent to this matter.
虽然大家都很激动，她却无动于衷。
suīrán dàjiā dūhěn jīdòng ， tā què wú dòng yú zhōng 。
Although everyone is very excited, she remains aloof.
他的态度无动于衷，让我感到困惑。
tāde tàidù wú dòng yú zhōng ， ràng wǒ gǎndào kùnhuò 。
His indifferent attitude confuses me.