除非你陪我去,不然我不去。
chúfēi nǐ péi wǒ qù , bùrán wǒ bù qù 。
I'm not going unless you come with me.
除非打折,不然我买不起。
chúfēi dǎzhé , bùrán wǒ mǎibuqǐ 。
I can't afford it unless it's on sale.
除非他自己想学,不然谁也没办法。
chúfēi tā zìjǐ xiǎng xué , bùrán shuí yě méi bànfǎ 。
Unless he wants to learn himself, nobody can do anything.