他提出了质疑。
He raised a challenge.
to call into question; to challenge (the truth or validity of)
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
Nice writing!
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
他提出了质疑。
He raised a challenge.
大家质疑他的说法。
Everyone questioned his claim.