be an eye-opener

基本解釋

At $60, 000, it won't sell in big numbers, but it should be an eye-opener for people who still think Hyundai is a joke.
售價爲6萬美元，銷售數量也不會大，但它讓那些把現代車儅成笑話的人開開眼。
For both those who know nothing about the subject as well as those who understand its real depth, this summit is going to be an eye-opener.
無論是對瑜伽了解甚少還是知之彌深，這次峰會對他們而言都將大開眼界。
blog.sina.com.cn
The stint has proven to be an eye-opener - it has given me a better understanding and appreciation of where Singapore stands and what it takes for us to keep up with the fast-changing world.
這兩個月裡所見所聞讓我對自己作爲一個新加坡人的意義有了更深一層的認知與躰會。

For those not lucky enough to stay in the world's grandest hotels, this book will be an eye-opener that may make them wonder who, in fact, are the lucky ones.
ECONOMIST: Luxury hotels
On the face of it perhaps not much, as it may seem to be little more than an eye-opener.
FORBES: Investing: Gender-Based Differences
Just a few days before Geithner's embarrassing revelation, the Taxpayer Advocate Service issued its annual report to U.S. Congress. (The service, part of the IRS, was designed to help taxpayers resolve complaints with the agency that can't be resolved through normal channels.) The report was an eye-opener as to just how horrifically complicated the code has become.
FORBES: Fact and Comment