Zhè / kuài / lǎo / mù / tou / fàng / le / jǐ / shí / nián / ， / hái / shì / qiào / yìng / de / ， / yī / diǎn / méi / biàn / xíng / 。

这块老木头放了几十年，还是翘硬的，一点没变形。

This old piece of wood has been stored for decades, it's still hard and hasn't warped at all.