他发誓要学好。
He vowed to do well.
发誓
to vow; to pledge; to swear
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.
发
誓
Nice writing!
Build with these blocks
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
See it in sentences
她当众发誓了。
She made a vow in public.