难忘

例句

• zhè这shì是nán难wàng忘de的jīng经lì历 。

  This is an unforgettable experience.

• nà那cì次lǚ旅xíng行chéng成wéi为wǒ我nán难wàng忘de的huí回yì忆 。

  That trip became an unforgettable memory for me.

用法