"plop came the ball down to the corner of the green"
"He planked the money on the table" "He planked himself into the sofa"
He..startled all the turtles, who plopped into the water.
The choppy water, plopping against the boats.
Each individual drop I could hear plopping on the rooftiles.
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)