The structure 除了A就是B
"If not..., then..."
The structure 除了A就是B 
indicates that there are no other options except “A” and “B”.
"A" and "B" can be replaced with nouns, verbs or adjectives.
indicates that there are no other options except “A” and “B”.
"A" and "B" can be replaced with nouns, verbs or adjectives.Examples
他很懒，每天除了吃饭，就是睡觉
He is very lazy. If he’s not sleeping, then he’s eating
tā hěn lǎn, měi tiān chúle chīfàn, jiùshì shuìjiào
这几天除了刮风就是下雨，天气糟透了
These days the weather is terrible. If the wind isn’t blowing, then it’s raining
zhè jǐ tiān chúle guā fēng jiùshì xiàyǔ, tiānqì zāo tòu le
这书架上的书，除了文学的，就是语言的
The books on this shelf are, if not literature, then linguistic
zhè shūjià shàng de shū, chúle wénxué de, jiùshì yǔyán de
出事地点周围，除了消防员就是武警
Apart from firefighters, armed police officers are on duty around the scene of the accident
chūshì dìdiǎn zhōuwéi, chúle xiāofángyuán jiùshì wǔjǐng
Learn more