scums

v.

浮渣( scum的第三人称单数 )；卑鄙的人；人渣；社会渣滓

1. Don't waste your sympathy on scum like that.
   对这样的渣滓你没必要同情。
2. In the morning you'll be shipped out with the rest of the scum.
   早晨你就会和别的社会渣滓一起运走了。

Blue‐green algal scums: An explanation for their occurrence during freshwater blooms1
Purification of sludges, scums, and the like to prepare relatively purified tocopherol
Factors affecting the timing of surface scums and epilimnetic blooms o...
Factors affecting the timing of surface scums and epilimnetic blooms of blue-green algae in a eutrophic lake
Microprofiles of photosynthesis and oxygen concentration in Microcystis sp. scums
Microprofiles of photosynthesis and oxygen concentration in Microcystis sp. scums
The potential role of particulate diatom exudates in forming nuisance mucilaginous scums.
Environmental factors affecting the production of peptide toxins in floating scums of the cyanobacterium Microcystis aeruginosa in a...
Chromophoric dissolved organic matter of black waters in a highly eutrophic Chinese lake: Freshly produced from algal scums?
An algorithm for detecting trophic status (chlorophyll- a ), cyanobacterial-dominance, surface scums and floating vegetation in inla...