一心二用(yīxīn'èryòng)=one heart, two use(literal meaning); What do you think idiomatic meaning is?

一心二用(yīxīn'èryòng)=one heart, two use(literal meaning); What do you think idiomatic meaning is?

I believe that 一心二用 (yīxīn'èryòng) = to keep one's mind on two things at the same time or "do two things at the same time"

not giving undivided attention to something; to do two things at once