他后悔不已。
Tā hòuhuǐ bùyǐ.
English
He deeply regretted it.
endlessly
(used after a verb) endlessly; incessantly
Every character draws itself stroke by stroke, then hands you the brush to trace it yourself.
Nice writing!
他后悔不已。
Tā hòuhuǐ bùyǐ.
He deeply regretted it.
他激动不已。
Tā jīdòng bùyǐ.
He was extremely excited.
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.