1. I once spent an uncomfortable weekend which I shall never forget at his house.
    有一次，我在他家里度周末，过得很不愉快。这事我永远不会忘记。

2. It may not be fair, but many people forget the valuable services the officers perform.
    这不太公正，但很多人还是会忽略海关官员所作的宝贵贡献。

3. Forget the psychic network — it's way too expensive."
    把通灵大师热线忘了吧，那太贵了。"