depart fromsth
—phrasal verbwithdepartverb[I]formaluk/dɪˈpɑːt/us/dɪˈpɑːrt/
to be different from theusualorexpectedway of doing orthinkingabout something
脱离，背离，偏离
Iseenoreasonfor us todepartfromourusualpractice.我看不出有打破惯例的必要。
At thispointin thespeech, theministerdepartedfrom hispreparedtext.讲到此处，部长脱离了事先准备好的讲稿。