无懈可击: with no chink in one's armour; be hard to fault; be unable to find any chinks in sb.'s armour; invulnerable; leave no room for criticism; no one can find any fault with; nothing to object
逻辑: logic 短语和例子有学问而且合逻辑地辩论 argue with learning and logic; 逻辑上的错误 an error in logic; 数理逻辑 mathematical logic; 合乎逻辑 logical; 按照这种逻辑 according to that kind of reasoning; 这是什么逻辑 ? what sort of log
