eye opener

基本解释

It was a real eye opener, I can tell you.
我告诉你，这真的令人大开眼界。
These lessons are in no way rules, but hopefully an eye opener!
这些总结中并没有绝对的规则，但希望能让你开启思路。
The third I think is business actually coming back and saying to IT "My gosh we can't keep up with your delivery speed", and this was a big eye opener.
第三点，我认为业务人员反过来对IT部门说：“天哪，我们跟不上你们交付的速度”，这是让人瞠目结舌的事情。

It was an eye-opener, but these days, the children are younger.
这是让我开眼界的事情，但是现在，孩子们更小了。
现在的孩子好可怕 - SpeakingMax英语口语达人

It was a real eye opener as to the power of social media.
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Work the long hours of a manager and doing the job of a counter clerk will be an eye opener.
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Seeing case after case of chronic suffering, caused by simple diseases that were treatable or preventable, was quite an eye opener.
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