| 释义 |
Prairie dogs短语⁷⁰⁶⁰³
基本例句
n.草原犬鼠属原型prairiedog的复数Introduced to the U.S. a century ago, it is creeping into the upper Midwest, wiping outprairie dogsand threatening the black-footed ferret, one of North America's rarest species.一个世纪前，鼠疫杆菌入侵美国，逐渐蔓延至整个中西部，经草原犬鼠的传播，对北美最濒危的黑脚貂造成威胁。 |