Usages of guān
她 关 灯 了， 他 关 门 了。tā guān dēng le, tā guān mén le.
She turned off the light, and he closed the door.
如果 你 把 灯 关 了， 我 就 不 看 书。rúguǒ nǐ bǎ dēng guān le, wǒ jiù bù kàn shū.
If you turn off the light, I won’t read.
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