英语翻译

问题描述:

英语翻译
You know how potatoes can turn green if they are left in the light too long?And that greenish skin can make the potato taste bitter; even make you ill.

土豆如果太长时间暴露在光下,就会变绿.变绿的土豆尝起来很苦,甚至会让人生病.主要是不明白how在这里是做什么成分用