去年秋天，曾经清澈见底的雅鲁藏布江干流香江江水在流入印度时突然变成黑灰色，原因很可能是中国在上游从事的开挖、开采和破坏活动。
Last fall, the once-pristine Siang – the Brahmaputra’s main artery – suddenly turned blackish gray as it entered India, potentially because of China’s upstream tunneling, mining, or damming activity.