erratic flight meaning in Chinese

非计算轨迹飞行

Ever followed a butterfly ' s erratic flight
你是否跟随过一只蝴蝶的飘忽的飞翔？
Ever followed a butterfly ' s erratic flight
你是否跟随过一只飘然飞舞的蝴蝶？
Ever followed a butterfly ' s erratic flight or gazed atthe sun into the fading night
有没有注意到蝴蝶任意的飞舞？或是盯著太阳直到日落？
Ever followed a butterfly ' s erratic flight or gazed at the sun into the fading night
你曾否追逐过飘忽不定的蝴蝶或看着夕阳消失于地平线呢？