qíng tóu yì hé
find each other congenial; to have an affinity with each other
Liǎng rén shuō de qíngtóuyìhé, zhǐ hèn xiāngjiàn zhī wǎn.
They found so much in common that they regretted not having met earlier.
Liǎng rén tán de qíngtóuyìhé, xiāngjiànhènwǎn.
They both found so much in common they regretted not having met earlier