除非否则

chú fēi nǐ zài jiā bǎ jìn r fǒu zé fǎ yǔ kǎo shì kě néng huì bù jí gé

除非你再加把劲儿，否则法语考试可能会不及格。

You'll fail in French unless you work harder.

chú fēi wǒ men gǎi jìn dǎ fǎ fǒu zé jiù huì shū diào zhè chǎng bǐ sài

除非我们改进打法，否则就会输掉这场比赛。

Unless we improve our game, we're going to lose the match.