If you say that someone or something is awful, you dislike that person or thing or you think that they are not very good.
We met and I thought he was awful.
我们见了面,我觉得他令人讨厌。
an awful smell of paint.
一股难闻的油漆味。
If you say that something is awful, you mean that it is extremely unpleasant, shocking or bad.
Her injuries were massive. It was awful.
她的伤势很严重,糟透了。
If you look or feel awful, you look or feel ill.
I hardly slept at all and felt pretty awful.
我几乎没睡,感觉挺难受。
You can use awful with noun groups that refer to an amount in order to emphasize how large that amount is.
I've got an awful lot of work to do.
我有一大堆工作要做。