n.渣滓；糟粕；廢物
名詞dreg的復(fù)數(shù)形式.
These criminals are the dregs of society. 這些罪犯都是社會的渣滓。
What we should make sure is to absorb the essence and discard the dregs. 我們要明確的是取其精髓,去其糟粕。
