1. 让人讨厌的；糟糕的
    If you say that someone or something is awful, you dislike that person or thing or you think that they are not very good.

    e.g. We met and I thought he was awful...
           我们见了面，我觉得他很讨人厌。
    e.g. I couldn't stand London! Bloody awful place.
           我在伦敦再也呆不下去了！简直是个糟糕至极的地方。

2. 使人不愉快的；令人震惊的；可怕的；极坏的
    If you say that something is awful, you mean that it is extremely unpleasant, shocking, or bad.

awful的翻译

    e.g. Her injuries were massive. It was awful...
           她遍体鳞伤。太可怕了。
    e.g. Some of their offences are so awful they would chill the blood.
           他们的一些罪行骇人听闻，简直令人毛骨悚然。

3. 生病的;不舒服的
    If you look or feel awful, you look or feel ill.

    e.g. I hardly slept at all and felt pretty awful...
           我基本上没睡，觉得很难受。
    e.g. I looked awful and felt quite shaky.
           我貌似生病了，觉得很虚弱。

4. （量）极大的，极多的
    You can use awful with noun groups that refer to an amount in order to emphasize how large that amount is.

    e.g. I've got an awful lot of work to do.
           我有一大堆事情要做。

5. （与表示特征的形容词连用，用于强调）极度地，非常
    You can use awful with adjectives that describe a quality in order to emphasize that particular quality.

awful的解释

    e.g. Gosh, you're awful pretty...
           天哪，你太漂亮了！
    e.g. You know, 10 years sounds like an awful long time.
           你知道，10年听起来遥遥无期。