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What may look like a beautiful green oasis is actually the top of an active volcano.
乍一看美丽的绿洲实际上则是一座活火山的山顶。
Located in Java, Indonesia is the Kawah Ijen volcano.
卡瓦伊伊恩火山坐落在印度尼西亚爪哇岛上。
At its top sits a highly acidic crater lake.
火山顶部有一个强酸性火山口湖。
The water is 90 degrees Fahrenheit and appears bluish green.
湖水温度90℉（32℃），呈蓝绿色。
No species live in or around the water, as the conditions are too harsh for nature to survive.
湖中及周边地区寸草不生，因为这里的环境实在太过严酷，生命难以在此维持。
At night a rare phenomenon can be seen.
晚上，这里可以看到罕见的景象。
Unlike any other volcano in the world, Kawah Ijen emits what appears to be bright blue flames.
与世界上其他火山不同，卡瓦伊伊恩火山会喷射明亮的蓝色火焰。
This blue glow is not caused by lava, but instead from a combustion of sulfuric gases.
这种蓝光并非熔岩形成，而是硫酸气体燃烧产生的颜色。
Once the gas is cool, a bright yellow sulphur forms, which is mined and sold.
一旦冷却，气体就会形成明亮的黄色硫磺，供人们开采出售。
Miners use steel bars to break off portions of the sulfur and carry up to 200 pounds back down the volcano.
矿工们用钢棍出去矿石上的部分硫，一次能背多达200磅（约180斤）的硫磺下山。
The emitted gases are toxic if inhaled, making this strenuous work incredibly dangerous.
火山喷发的气体有毒，原本艰巨的开采工作为此也变得无比危险。
While this unique volcano may be home to one of the world's most grueling jobs, it is also a sight worth seeing.
这座独特的火山不仅孕育了堪称世界上最艰苦的工作，本身也是非常值得一看的自然奇观。
