HSK 6 · verb · preposition
至于
as for; as to; to go so far as
这件事已经定了，至于时间再商量。
Zhè jiàn shì yǐjīng dìngle， zhìyú shíjiān zài shāngliang。
This matter is settled; as for the time, we'll discuss it later.
别担心，这事还不至于影响他的工作。
Bié dānxīn, zhè shì hái búzhìyú yǐngxiǎng tā de gōngzuò.
Don't worry; it won't go as far as affecting his work.
他太累了，以至于站着就睡着了。
Tā tài lèile， yǐzhìyú zhànzhe jiù shuìzhele。
He was so tired that he fell asleep while standing.