同日而語 [ㄊㄨㄥˊ ㄖˋ ㄦˊ ㄩˇ; tong2 ri4 er2 yu3] lit. to speak of two things on the same day (idiom); to mention things on equal terms (often with negatives: you can't mention X at the same time as Y) ◄ ►