常见例句用作名詞 (n.)Lemmings, small rodents of the arctic and subarctic regions of the Northern Hemisphere, have long been a byword for mass mindlessness and mass suicide.旅鼠是一種生活在北半球北極區和亞北極區的小型齧齒類動物，一直以來人們流傳著很多關於他們愚笨和自殺的笑話。 返回 subarctic