Stream and river control works may have a serious local influence on accelerating channel erosion.
水流及河流控制工程对加速河道冲刷有严重影响。
Join your local trail maintenance group and help combat trail erosion.
加入当地的步道维护小组，并帮助打击步道侵蚀。
Join your local trail maintenance group and help combat trail erosion.
加入当地的步道维护小组，并帮助打击步道侵蚀。
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