1. The iron is aluminized to avoid erosion.
    铁漆上一层铝防止锈蚀。

2. Much of the country has already been clear-cut, and soil erosion has been extensive.
    这个国家许多地区的树木已被砍伐殆尽，而且土地流失范围十分广。

3. In his recent book Earth Politics, Ernst Ulrich von Weizsacker wrote that "perhaps 90 percent of the destruction of animal and plant species, soil erosion, forest destruction and creation of deserts is taking place in developing countries."
    在其新作《地球政治学》一书中，厄恩斯特·乌尔里克·冯·魏茨泽克写道："动植物物种灭绝，土壤受侵蚀，森林被毁，沙漠产生，在这些破坏中，也许有90%正发生在发展中国家。"