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n.（棍棒顶端等的）金属箍，金属环，套圈vt.装以金属铁...
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ferrule的现在进行时为：ferruling...
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ferrule的第三人称单数（三单）为：ferrules...
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ferrule的复数形式为：ferrules...
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ferrule的现在完成时为：ferruled...
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ferrule的音标：ferrule的英式发音音标为：['feru:l]ferrule的美式发音音标为：['ferəl]...
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Its ferrule followed lightly on the path, squealing at his heels.手杖上的金属包头沿着小径轻快地跟随着他, 在他的脚后跟吱吱作响.A ferrule and eraser are crimped into place on each pencil.金属环把橡皮头固定到每一根铅笔上.The tapered legs, each fitted with a brass ferr...