dregs

n.

沉淀物，残渣，渣滓；糟；沉渣；

1. These criminals are the dregs of society.
   这些罪犯都是社会的渣滓。
2. The dregs have settled at the bottom of the bottle.
   渣滓都沉到瓶底了。
3. What we should make sure is to absorb the essence and discard the dregs.
   我们要明确的是取其精髓,去其糟粕。

Societies Beyond Oil: Oil Dregs and Social Futures
Recycling of wood chips and wheat dregs for sludge processing.
High-rate composting of barley dregs with sewage sludge in a pilot scale bioreactor.
Interaction of mantle dregs with convection: Lateral heterogeneity at the core‐mantle boundary
Study on the extraction of protein from rice dregs in alkalinous condition
Study on Extraction of Protein from Rice Dregs by Alkali Dissolution and Enzyme Hydrolysis
Study on Production of High Activity Dietary Fiber from Soybean Dregs
Mineral phases of green liquor dregs, slaker grits, lime mud and wood ash of a Kraft pulp and paper mill
Alcohol fermentation from the mash of dried sweet potato with its dregs using immobilised yeast
Optimization of angiotensin I-converting enzyme (ACE) inhibition by rice dregs hydrolysates using response surface methodology