“简单地”用英语怎么说

信写得很短——只是简单地说了一下他们的问题。The letter was short — a simple recitation of their problem.酸雨并非简单地由烧煤造成。Acid rain is not straightforwardly attributable to the burning of coal.很难将这些人简单地看作是装病怠工的员工。These people are difficult to writ...