Since the late 1990s, the government has stopped building large dams, instead focusing on removing existing dams and restoring natural habitats.

自上世纪90年代末以来，政府已经停止建造大型水坝，而是专注于拆除现有水坝，并恢复自然栖息地。

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Efforts to clean the waterway have led to reduced heavy metal pollution since the late 1990s, Ribeiro said.

20世纪90年代末以来，人们一直努力清理水道，重金属污染已经大大减少，里贝罗说。

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Since the late 1990s Input Trade Fairs have become a preferred FAO method to stimulate local food production.

自20世纪90年代末，投入物展销会已成为粮农组织用来推动当地粮食生产的首选方法。

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It has suddenly shot up in the latest years; this is since the late 1990s.

它在近几年突然上升,这是自90年代以来的数据

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The flow of new arrivals has increased since the late 1990s, multiplying this effect.

ECONOMIST: Class

American manufacturers are hiring again, creating jobs for the first time since the late 1990s.

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Those who think not point out that the tech landscape has changed dramatically since the late 1990s.

ECONOMIST: Silicon Valley and the technology industry