not one/an iotaNONE/NOTHINGnot even a small amount 一点也不 SYN bit It won’t make an iota of difference. 这不会有丝毫区别。
not one/an iota• We have heard not one iota of evidence or heard any defense the suspect may have in this case.• It was none of her business and it mattered to her not one iota.• There is not an iota of evidence that such standardised testing has improved education anywhere in the world.
→ not one/an iota at iota(1)