念念不忘

tā niàn niàn bù wàng de shì zǔ guó de mìng yùn hé mín zú de qián tú

他念念不忘的是祖国的命运和民族的前途。

What he always bears in mind is the fate of his motherland and the future of his nation.

nǐ duì qián nǚ yǒu hái niàn niàn bù wàng ba

你对前女友还念念不忘吧？

Is it true you are still hung up on your ex-girlfriend?

tā niàn niàn bù wàng zì jǐ de fù mǔ

她念念不忘自己的父母。

She hugged the thought of parents.