We need to find a more environmentally correct way of disposing of these materials. 我们需要找到一种更加环保的方式来处理这些材料。The company has been charged with illegally disposing of hazardous wastes.该公司因为违法处置有害垃圾遭到了起诉。You did us a great favour by disposing of that problem.你解决了那个问题，可算是帮了我们一个大忙。