pond scum
noun[U]
uk/ˈpɒnd ˌskʌm/us/ˈpɑːnd ˌskʌm/smallplantsthatgrowon thesurfaceof asmallareaofwater:
（池塘等水面上漂浮的）绿藻层Scientistsclaimedthat they hadfounda way to "grow"hydrogengasfrompondscum.科学家宣称，他们找到了一种让池塘绿藻层 "生长"氢气的方法。
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mainlyUSinformal(UKinformalusuallypond life)
peoplethat you do not like orrespectat all:
无用的人；可鄙的人；平庸之辈He is anodiouslittlepieceofpondscum.他就是个可恶的人渣。
Water & marsh plants, bushes & trees
- algae
- Andromeda
- blue-green algae
- bulrush
- dasima
- kelp
- kombu
- laver
- lotus
- mangrove
- plankton
- pond life
- reed
- reedy
- rice
- rush
- samphire
- spirogyra
- spirulina
- water lily
You can also find related words, phrases, and synonyms in the topics:
Bacteria, moulds, germs & viruses
Liked, or not liked, by many people
Inheriting & bequeathing