Duckweed
n. 浮萍
?? 牛津釋義
duckweed
n [U] plant that forms on the surface of ponds, etc 浮萍（生在池塘等表面的植物）.
??? 情景例句
You've come up with a good idea.
你想出來的主意好極了。
Hello, may I change some money with my Master card?
我能否用萬事達(dá)卡來兌換些錢嗎？
and by the time he is grown and able to take part in its activities,
等他長大了，能做各種事了