词组短语短语long beech fern 长山毛榉long auger beech fern 长山毛榉卵果蕨beech fern更多词组英英字典柯林斯英英字典 a fern, Thelypteris phegopteris, that grows in damp N temperate woods and hills: family Polypodiaceae beech fern剑桥字典beech fern柯林斯字典