It shows that birds in Hawaii are more in danger of becoming extinct than anywhere else in the United States.
这份报告显示，在夏威夷的鸟类比美国任何其他地方的更处于濒临灭绝的危险之中。
Crater Lake in southwestern Oregon of the United States lies in the crater of an extinct volcano.
美国俄勒冈州西南部的火山口湖，在一座死火山口上。
Crater Lake in southwestern Oregon of the United States lies in the crater of an extinct volcano.
美国俄勒冈州西南部的火山口湖，在一座死火山口上。
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