wading in deep water and treading on thin ice as if on the brink of a chasm as if treading on thin ice -- with caution and care as though one stood before a deep pond or walked on thin ice proceed with extreme caution
英語詞典收錄了最新的漢英詞典和英漢詞典，總共有200多萬個詞條，詞庫仍在不斷更新中。