n.燕子尾巴；燕尾服；燕尾形旗子的末端
A magnified shot shows the head of a tiger swallowtail butterfly larva. 這個放大的照片顯示一只兇猛風蝶幼蟲的頭部。
A swallowtail butterfly was resting in a snow cup.The scene held us for some time. 一只燕尾蝶停留在一個雪杯里，這幅景象吸引了我們。
