我不能一心二用。

I can't do two things at a time.

Source: Tatoeba

Sentence Composition

1 我 wǒ
  1. I
  2. me
  3. my
2 不能 bùnéng
  1. cannot
  2. must not
  3. should not
=3 一心二用 yīxīnèryòng
  1. to do two things at once (idiom)
  2. to multitask
  3. to divide one's attention
=3 一心二用 yīxīn'èryòng to divide one's attention; to multitask