因为对找到关于这方面的更多信息的兴趣，伊朗研究员来到戈勒斯坦省，一个世界上食管癌发病率最高的地方之一。
Interested in finding out more, Iranian researchers went to Golestan province, which has one of the highest rates of oesophageal cancer in the world.
基伏省首府及矿产中心戈马市那积满灰尘的街道，展现了刚果的顽疾。
The dusty streets of Goma, North Kivu’s capital and a mining hub, illustrate Congo’s ills.
基伏省首府及矿产中心戈马市那积满灰尘的街道，展现了刚果的顽疾。
The dusty streets of Goma, North Kivu's capital and a mining hub, illustrate Congo's ills.
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