potato famine短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 爱尔兰大饥荒Irish Known as a monoculture, a vast field of one species is risky because all the crops are vulnerable to the same diseases and conditions, setting up disasters like the 1840s Irish Potato Famine. 因为同样的条件下，该品种作物全部都容易遭受同一种病害侵袭，会引发像十九世纪40年代“爱尔兰马铃薯危机”那样的巨大灾难。 yeeyan