即使在环境状况最好的时候，伊朗首都德黑兰仍然是世界上污染程度最严重的城市之一。
The Iranian capital Tehran is at the best of times - one of the most polluted cities on earth.
在首都德黑兰等一些地方的儿童商店，随处可见欧美一些知名玩具品牌。
Iconic toy brands can be bought in children's shops in the capital Tehran and elsewhere.
右下的光来自小村庄和西南100千米之外的首都德黑兰。
Lights at the lower right are from small villages and the capital Tehran, over 100 kilometers away to the southwest.
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