Definition: used to say that you think that something is true, but cannot be sure Level: B2
据我所知，她从未在国外工作过。
___To ___the ___best ___of ___my ___knowledge, she's never worked abroad.
此外，据我所知，城里没有地方能尝到这么可爱的蘑菇。
Besides, ___to ___the ___best ___of ___my ___knowledge, nowhere in the city can [you] try such lovely mushrooms.
据我所知，会议早上9点开始。
___To ___my ___knowledge, the meeting starts at 9 am.
