那就用“反客为主计”！登门拜访老丈人家，而且到了那儿别把自己当客人，要抢着干活，然后跟老人家说说你的一片苦心。这样就算你老婆再铁石心肠，她爸妈都会帮你说话的。
nà jiù yòng “fǎnkèwéizhǔjì ”！dēngmén bàifǎng lǎozhàngrén jiā ，érqiě dào le nàr bié bǎ zìjǐ dāng kèrén ，yào qiǎng zhe gànhuó ，ránhòu gēn lǎorénjiā shuō shuo nǐ de yīpiàn kǔxīn 。zhèyàng jiùsuàn nǐ lǎopo zài tiěshíxīncháng ，tā bà mā dōu huì bāng nǐ shuōhuà de 。
So just switch the roles of host and guest! Pay your in-laws a visit. And when you arrive, don't act like a guest. Tell them all about how hard you work. That way, no matter how hard-hearted your wife is, her mom and dad will put in a good word for you.