“易变地”常见的英文表达可以是 “changeably” (副词形式) ,不过更自然常用的表达会结合具体语境,比如描述天气易变,可以说 “the weather changes frequently” ;若要表达某地情况易变,可以说 “This place is prone to changes” 或者 “This area is characterized by its variability” ,“variability” 更能精准体现“易变性、多变性”这一特质 。