Meaning of guāi:
乖
(of a child) obedient, well-behaved; clever; shrewd; alert; perverse; contrary to reason; irregular; abnormal
Zhège háizi hěn guāi.
这个孩子很乖。
This child is very well-behaved.
Wǒ de xiǎo māo hěn guāi, zǒng shì tīnghuà.
我的小猫很乖，总是听话。
My kitten is very clever and always obedient.
Zhège xiǎohái hěn guāi, zǒng shì tīnghuà.
这个小孩很乖，总是听话。
This child is very well-behaved and always listens.
Zhège háizi fēicháng guāi, zài kètáng shàng zǒng shì hěn zhuānxīn.
这个孩子非常乖，在课堂上总是很专心。
This child is very alert and is always focused in class.
Tā de háizi fēicháng guāi, zǒng shì tīnghuà.
她的孩子非常乖，总是听话。
Her child is very well-behaved and always listens.
Zhè ge háizi zhēn guāi, cóng bù rě máfan.
这个孩子真乖，从不惹麻烦。
This child is really well-behaved and never causes trouble.
Nàge xiǎohái hěn guāi, cóng bù rě máfan.
那个小孩很乖，从不惹麻烦。
That child is very well-behaved and never causes trouble.
Zhège xiǎohái hěn guāi, zǒng shì tīnghuà.
这个小孩很乖，总是听话。
This child is very well-behaved and always listens.
