fluted
adjective uk/ˈfluː.tɪd/ us/ˈfluː.t̬ɪd/
边缘有凹槽（或沟槽）的
If an object, especially a round object, is fluted, its edges have many curves that go in and out.
a flan dish with fluted edges 波形边缘的馅饼盘
fluted columns/pillars 有凹槽的柱子
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