polar bears
na.北极熊
北极熊的采血点；爱上北极熊；梁伟灏
例句
1.The Wrangel Island, also known as a maternity hospital of the polar bears.
弗兰格尔岛，也被称为北极熊的妇产科医院。
2.The United States has proposed listing polar bears as threatened with extinction.
美国提议将北极熊列入濒危物种清单。
3.The freezing conditions, not to mention polar bears, should put off any unwelcome visitors.
严寒的气候，更不用说北极熊了，可将任何不受欢迎的访客拒之门外。
4.Then we had tea, with a huge Christmas cake covered with snow men and polar bears.
接着我们喝下午茶，吃覆盖着雪人和北极熊的圣诞大蛋糕。
5.It's all too common these days to see pictures of polar bears trapped on rapidly diminishing ice sheets.
现在我们经常看见北极熊被困在迅速消失的薄冰上。
