To discuss or compare different people or things as if they were on the same level; to lump together; to mention in the same breath.
小明和小丽虽然都是初学者，但小丽的画技明显更胜一筹，两者不能同年而语。
Although both Xiao Ming and Xiao Li are beginners, Xiao Li's painting skills are clearly superior; the two cannot be mentioned in the same breath.
Next Idiom