Examples
tā他dài戴zhù著miàn jù面具yǐ zhì以至yú于méi没yǒu rén有人rèn认chū出tā他。
他戴著面具以至于没有人认出他。
He wore a mask so that no one could recognize him.
他跑得太快，以至于喘不过气来。
He ran so fast that he was out of breath.
我有太多话想和你说，以至于不知从何说起。
There are so many things to tell you that I don't know where to start.