root out
动词- To remove or abolish completely. · They rooted out all vestiges of corruption.· They rooted out all the burdock from their paddocks.
- To search for and discover. · Near-synonym: suss out· It took them hours to root out exactly where the water was coming in.
来自图书馆
“I am sorry to see a pupil of mine displaying such a temper and such a vindictive spirit,” he said in a solemn tone, as if the mere fact of being a pupil of his ought to root out all evil passions from the hearts of small imperfect mortals.
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