Imagine looking at a beach scene, said Wang. A little later, someone mentions surfing, and the beach scene pops back into your head.

王维春说，想象一下你眼前出现了海滩，过一会儿，某个人说起冲浪，海滩的情景就一下子蹦回你的脑海。

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Hayley Hung, at the air quality research division of Environment Canada and one of the team, said their work provided the first evidence of the remobilisation of Pops in the Arctic.

来自加拿大环境部空气质量部门的小组成员HayleyHung表示，他们的研究工作初步证明了北极圈持久性有机污染物正在复苏。

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Hayley Hung, at the air quality research division of Environment Canada and one of the team, said their work provided the first evidence of the remobilisation of Pops in the Arctic.

来自加拿大环境部空气质量部门的小组成员HayleyHung表示，他们的研究工作初步证明了北极圈持久性有机污染物正在复苏。

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