By and by attention ceased from him, and the accustomed school murmur rose upon the dull air once more.

渐渐地，大家的注意力不再集中在他身上，学校里惯有的低语声又在沉闷的空气中响起。

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(OMITTED) Remais,an assistant professor at Emory University's Rollins School of Public Health in Atlanta, He says the growing economy is fueling environmental risks such as air pollution and chemical toxins, while age-old environmental challenges remain.

VOA: standard.2010.04.07

Suddenly, he remembered how he had to hold two water buckets up in the air in primary school, along with the faces of the headmaster and his homeroom teacher.

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ECONOMIST: Egypt