柯林斯詞典playpen /?ple??p?n/ (playpens) 1. N-COUNT A playpen is a small structure designed for a baby or young child to play safely in. It has bars or a net around the sides and is open at the top. (供嬰兒或幼兒在裡麪玩的)護(hù)欄 返回 playpen劍橋詞典a small structure with bars or a net around the sides , but open at the top , that you can put a baby in to play safely （供幼兒在內(nèi)玩耍的）遊戯圍欄，護(hù)欄 返回 playpen