1.Formed by the collapse of the Mount Mazama volcanoes approximately 6, 850 years ago, this caldera (crater) lake is located in Oregon.
这座位于美国俄勒冈州（Oregon）的火山湖是大约6850年前马扎玛火山（MountMazama）坍塌形成的。
2.Around 7, 000 years ago, the volcano Mount Mazama erupted and collapsed and, as a result, formed Crater Lake.
约7,000年以前，马札马火山爆发、崩塌后，留下了火口湖。