duckweed
Longman Dictionary of Contemporary English 5++LDOCE 5++duck·weed /ˈdʌkwiːd/ noun [uncountable] HBPa plant that grows on the surface of ponds 浮萍
Examples from the Corpus
duckweed• Dim lighting and a duckweed covering complete the tank.duck·weed nounChineseSyllable
surface Corpus on a the of plant grows that
duckweed
duck‧weed /ˈdʌkwiːd/
noun [uncountable]
a plant that grows on the surface of ponds
duck‧weed /ˈdʌkwiːd/
noun [uncountable]a plant that grows on the surface of ponds