今天给大家介绍的一个非常有用的习惯用语是eye-opener。Eye-opener是一个字。Eye-opener有两个意思，一个是表示惊奇，就像下面这个女子所表达的情绪：

"Of course, John and I have had a few problems, just like most married couples. But I always felt we had a good, solid marriage. So it was a terrible eye-opener when I opened the letter he'd left on the kitchen table and found out he'd run off with his old college sweetheart."

这个被抛弃的妻子说：“当然，约翰和我是有一些矛盾，就像大多数夫妻一样。但是，我一直认为我们的婚姻是有牢固基础的。所以，当我打开他留在厨房桌上的信，知道他和他以前大学里的女朋友出走了的时候，我真是非常惊奇。”

Eye-opener的另一意思是：开阔了眼界。请听下面这个例子：

"Seeing those color films the astronauts took off the earth on their flight to the moon was certainly an eye-opener. I never realized how beautiful and how lonely our planet looks hanging there in space."

这句话的意思是：“看到宇航员在登上月球时拍的那些有关地球的彩色照片真是开了眼界。我从来也不知道我们的地球在空间是这么美丽、这么孤单。”

ozone
n.
【化】臭氧；[喻]爽心怡神的力量; [口]新鲜空气

We must seek immediate solutions for problems leading to the rapid depletion of the earth's ozone layer.
我们必须寻求立即解决引起地球臭氧层快速损耗的问题的办法。