Sent_en: 2zh Illegal logging in Mexico and a lack of milkweed in the Midwest United States for the butterflies to lay their eggs in has also taken a toll on the Monarchs' population.
Sent_yy: 墨西哥的非法伐木和美国中西部缺乏马利筋给帝王蝶来产卵，都给帝王蝶的数量带来了损失。