由于它们缺乏氧气，沼泽沉积物中的硫化物含量很高，而硫化物对大多数植物都有毒。
Because they lack oxygen, marsh sediments are high in sulfides that are toxic to most plants.
由于她的努力，全国数十个包含有毒物质的区域已被清理干净，一位化工行业发言人称她为“环保运动的先锋”。
Because of her efforts, dozens of toxic sites across the country have been cleaned up, and one chemical industry spokesperson calls her "a top gun for the environmental movement".
20世纪80年代，由于一些药盒内掺入了有毒物质，强生迅速召回泰诺胶囊，这曾使它成为危机管理的楷模。
In the 1980s Johnson & Johnson's swift recall of Tylenol capsules, after some packs had been laced with poison, made it a model for crisis management.
应用推荐