单词	pond scum
释义	pond scum noun 1 : any of various algae (especially spirogyra) or cyanobacteria 2 : a mass of tangled filaments of algae or cyanobacteria in stagnant waters Example Sentences Recent Examples on the Web In Earth's earliest fossil record, scientists study fossilized pond scum rather than bones or shells. Ashley Strickland, CNN, 3 Mar. 2021 And core samples from the watercourts contained a layer of dark gray sediment that appears to be on par with ancient pond scum. Alex Fox, Smithsonian Magazine, 2 Apr. 2020 The summer is hot, the water warm and people hoping to enjoy a pleasant day on Wisconsin’s lakes and rivers are instead turned away — disgusted at the soupy green blooms appropriately nicknamed pond scum. Lee Bergquist, Milwaukee Journal Sentinel, 19 Aug. 2019 Algix, a Mississippi company, is now making plastics from algae — from pond scum, to be precise. Ruth Kassinger, BostonGlobe.com, 26 July 2019 The idea behind the venture was radical: Use synthetic biology, a promising new technology that lets scientists reengineer the genetics of living organisms, to take on the fossil-fuel industry—and do the whole thing with pond scum. David Ferry, Newsweek, 11 Mar. 2015 Word History First Known Use 1864, in the meaning defined at sense 1
随便看	punctuator punctuators punctula punctulate punctulated punctulation punctulations punctules punctulum puncturable puncturation puncturations puncture puncture vine puncture voltage punctured punctured stamp punctureless puncturers punctures puncturing punctus punctus con punctus contra punctum pund

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