一个夏日的傍晚,我照例出门散步。我的邻居拔出了很多植物,花啊草啊的,扔在路旁。我认得那个枝干高高、有椭圆叶子的,是一种乳草。乳草这类植物,对牛、羊、马等家畜是有害的。但是,乳草是软体小虫——比如毛毛虫(帝王蝶前身)的食物,离开了乳草,这些小生物将不能生存。我拿起那棵乳草,仔细察看每一片叶子。在一片叶子的背面,我看到了一个很小的乳黄色的“蛋”。 On a summer evening, I usually went out for a walk. My neighbor pulled out a lot of plants, flowers ah grass, throwing at the roadside. I recognize that high branches, oval leaves, is a milkweed. Milkweed and other plants, cattle, sheep, horses and other livestock is harmful. However, milkweed is a diet of molting bugs - such as caterpillars (the predecessor of the monarch butterfly) - that leave the milkweed and that these small creatures will not survive. I picked up that milkweed, carefully examined each leaf. On the back of a leaf, I saw a tiny creamy “egg”.