Without knowing it. You did something — and the whole time you had no idea what you were really doing. "He unwittingly helped the thieves by leaving the door open." "She unwittingly gave away the secret." Think of it as the word that removes blame from a verb. English gives you a small set of these: `accidentally` (you slipped, the result was not intended), `unintentionally` (you did not mean the result), and `unwittingly` (you did not even know the situation you were in). That last one is the special flavour here. If you unwittingly insulted someone, you were not clumsy and you were not sneaky — you simply did not know that what you said was rude. Because of that, it usually shows up in stories where someone else knows more than the person acting: scams, plots, spies, mistakes with big consequences. It carries a slight feeling that the truth came out later. Register: formal and mostly written. In ordinary talk a Taiwanese student is much safer with "I didn't know, so I…" or "without realizing it." But you will meet `unwittingly` constantly in news writing and in reading tests, so knowing it on sight matters more than using it. Position: it slips in front of the main verb — "he unwittingly signed," "they had unwittingly created a problem."

在不知情的情況下、無意間（自己完全沒察覺地做了某事）