I'd like to try and forget the whole episode.

　　我倒想盡量把那段經歷全部忘掉。

　　I'll never forget hearing this piece of music for the first time.

　　我永遠不會忘記第一次聽到這首曲子的情景。

　　I forget how much they paid for it.

　　我忘了他們用多少錢買的這東西。

　　Let's forget our differences and be friends.

　　咱們別把分歧放在心上，做個朋友吧。

　　I completely forgot her birthday, what with one thing and another.

　　因為忙得不可開交，我把她的生日忘得一干二凈。