重点讲解：
1. miss out
错过；遗漏；
eg. Well, I'm glad you could make it. I didn't want you to miss out.
嗯，很高兴你赶来了，我可不希望你错过机会。
eg. If I do not go to the party ,I shall feel that I am missing out .
如果我不去参加那个舞会，我就会感到失去享乐的机会。
2. wall-to-wall
无处不在的；处处可见的；
eg. There were wall-to-wall people, all invited guests and celebrities.
到处都是人，全是邀请来的贵客名流。
eg. There's practically no more space in his room except wall-to-wall books.
除了满屋子的书之外，他的房间里几乎没有什么空的地方了。
3. be afraid to do sth.
恐怕；害怕；
eg. He who rides a tiger is afraid to dismount.
骑虎难下。
eg. He's not afraid to call a spade a spade.
他不怕直言不讳。