先生曰:马上去办。
The sir said: do it at once.
曰
to speak; to say
verb HSK 3.0 · Band 7
Watch it being written
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
曰
Nice writing!
See it in sentences
他曰:这样行吗？
He said: will this do?