除非 chú fēi only if (…, or otherwise, …)only whenonly in the case thatunless Example sentences 我每天都会去上课,除非我生病。 wǒ měitiān dōu huì qù shàngkè, chúfēi wǒ shēngbìng. I go to class every day unless I am sick 除非我打电话给你,不然你不要来我家。 chúfēi wǒ dǎdiànhuà gěi nǐ, bùrán nǐ bùyào lái wǒjiā. Unless I call you, do not come to my house