(informal)used to indicate that something is blatantly obvious
(非正式)教皇是天主教徒吗？；那可是显而易见的事
Did he bet that day? Is the Pope Catholic?.他那天赌博了吗？那可是显而易见的事。
Did he bet that day? Is the Pope Catholic?.
他那天赌博了吗？那可是显而易见的事。