基本解釋羢羽(動(dòng))同根派生 down-feather相關(guān)詞英漢例句In a plumulaceous feather, barb ridges grow straight without any helical movement.在羢羽上，羽枝脊則直直生長(zhǎng)，不做螺鏇形移動(dòng)。Common allergens include pollen, animal dander, down feathers, mites, chemicals, and a variety of foods.常見(jiàn)的過(guò)敏原包括花粉，動(dòng)物皮屑，羢羽，蟎類(lèi)，化學(xué)品，以及各種食品。down-feather更多例句