1QUANT 極少量;一點兒;些微 If you say that there is not an iota or not one iota of something, you are emphasizing that there is not even a very small amount of it. 極少量;一點兒;些微 [emphasis]
He's never shown an iota of interest in any kind of work. [+ of]
他從來沒有對任何工作表現出一點兒興趣。
2PHRASE (用於強調否定)一點兒也不,一點兒也沒有 You can use an iota or one iota to emphasize a negative statement. Not an iota or not one iota means not even to a small extent or degree. (用於強調否定)一點兒也不,一點兒也沒有 [emphasis]