他通宵工作。
He worked all night.
all night; throughout the night
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
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Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
他通宵工作。
He worked all night.
他通宵看球赛。
He stayed up all night watching the game.