tending to induce drowsiness or sleep 催眠的 the motion of the train had a somewhat soporific effect. 火车的行驶起了一定的催眠作用。 ■sleepy or drowsy 困倦的,昏昏欲睡的 some medicine made her soporific. 某些药使她昏昏欲睡。 ■tediously boring or monotonous 枯燥得令人厌烦的,单调乏味的 a libel trial is in large parts intensely soporific. 诽谤案的审讯大部分都非常沉闷单调。