他戒烟了。
He quit smoking.
to guard against; to exhort; to admonish or warn
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.
他戒烟了。
He quit smoking.
戒酒半年了。
He gave up drinking half a year ago.