痴长

wǒ chī zhǎng nǐ jǐ suì dàn méi duō xué dào shén me dōng xi

我痴长你几岁，但没多学到什么东西。

I might be a few years older than you, but I've not got much to show for it.

wǒ chī zhǎng nǐ liǎng suì dàn shì xué shí bù rú nǐ

我痴长你两岁，但是学识不如你。

I am two years your senior but not as knowledgeable as you are.