She then gives a quick glance to judge the amount of wear on its wings and announces: "47 millimeters, M [meaning medium wear], flower-visiting." After another volunteer has noted down her words, Cheng opens her hand, and the butterfly flies off, its body sparkling purple under the sun, like some fantastical fairy of the mountain forests.
然後她用尺量蝴蝶翅膀寬度，目測一下翅膀的受損程度，口述報出「47mm；M（翅膀中度受損）；訪花」，另一位義工登記完畢，鄭菀菁隨即把手指鬆開，紫蝶再度翩然飛去，陽光下閃爍著紫色「幻色」的身影，彷彿山林中的夢幻精靈。