動詞 root out:

1. pull up by or as if by the roots
   同義詞：uproot, extirpate, deracinate
2. destroy completely, as if down to the roots
   同義詞：uproot, eradicate, extirpate, exterminate

1. It is necessary to root out corruption in government.
   鏟除政府內(nèi)部地腐敗現(xiàn)象很有必要。
2. It is vain to attempt to root out heresy by force.
   試圖用暴力消除異端邪說是徒勞的。
3. I managed to root out a copy of the document.
   我好不容易才找到了文件的副本。