1·Mature butterflies retain the glycosides in a mature monarch butterfly could be used to determine its place of origin.
成熟的蝴蝶在成熟的黑脉金斑蝶体内保留糖苷，可以用来确定其产地。
2·Overall, a monarch butterfly is no more or less striking than its host, the milkweed pod.
总的来说，帝王蝴蝶和其宿主奶草豆荚的漂亮程度是差不多的，既不多一分，也不少一分。
3·The Monarch Butterfly breathes through its wings and female Monarchs have thicker wing veins.
帝王蝶通过翅膀呼吸，雌性帝王蝶有更加厚实的翅膀脉络。
4·No other butterfly in the world migrates like the orange and black monarch of North America.
世界上没有其它蝴蝶能像北美的橙黑相间的帝王蝶一样迁徙。
5·I thought to myself. "this is the most unusual looking butterfly." I have seen Monarch butterflies up close, but never one like this before.
这是外表最为奇特的蝴蝶了，我以前仔细的观察过帝王蝶，但是从来没有见过这种的。
6·In defending itself so thoroughly against the monarch, the milkweed became inseparable from the butterfly.
马利筋为自我保护如此认真地抵抗黑脉金斑蝶的侵袭，结果变得与蝴蝶难舍难分。
7·The monarch is one of the few butterfly species that make a migratory trip.
金 蝴蝶是一种很少见的进行迁移的蝴蝶种类。