1.Humans have also inadvertently introduced more than 100 non-native and invasive species into the lakes, such as zebra and quagga mussels, and sea lampreys that have decimated some indigenous fish populations.

人类还无意中 100 非本和入侵物引入了湖泊，例如斑马和斑驴贻贝，以及导致些本鱼类数量锐减的七鳃鳗。机翻

2.The quagga, though so plainly barred like a zebra over the body, is without bars on the legs; but Dr. Gray has figured one specimen with very distinct zebra-like bars on the hocks.

斑驴虽然像斑马样在身体上有条纹， 但腿上没有条纹；但是格雷博士发现了个标本， 其飞节上有非常的斑马状条纹。机翻