白旗海豚

river dolphins───江豚；淡水豚

white flags───白旗（表示投降）；降旗

white flights───白人迁移

white gasoline───无铅汽油

white ladies───可卡因毒品；“白衣女士”鸡尾酒

bottlenose dolphins───宽吻海豚

river dolphin───江豚；淡水豚

State carries out key protection on aquatic wild animals which are valuable or in severe danger such as white-flag dolphins, etc. in order to prevent them from dying out.───国家对白鳍豚等珍贵、濒危水生野生动物实行重点保护，防止其灭绝。

The second environmental project includes a nature reserve for white-flag dolphins, one of the most endangered animals in the world.───第二个环保项目包括一个自然保护区为濒危的海豚，其中最濒危动物在世界上的更大。

The number of white-flag dolphins in China has dropped because of environmental problems and pollution in the Yangtze River.───由于扬子江的环境问题和污染，中国的白鳍豚的数量已经在下降。