1. Have an eye for something 对某事(某物体)了解得非常清楚
Example: As a botanist, he has to describe and draw plants accurately, so he must have an eye for detail.

2. Turn a blind eye .熟视无睹
Example: Parents will spoil their children if they constantly turn a blind eye to their bad behavior.

3. Keep an eye on 照看, 密切注视
Example: Keep an eye on my purse – I'm just going to the bathroom.

4. Lead the field 处于领头地位
Example: For decades, the House of Dior led the field in elegant fashion design

5. On hold 尚未办理的事情
Example: Our vacation plans are on hold right now; because my Dad’s just been admitted to hospital with a stomach ulcer.

6. A dark horse 出乎意料的嬴家
Example: A dark horse in this year’s basketball cup was Japan!

7. The bottom line 本质内容
Example: We’ve talked a lot about taxation and immigration, but the bottom line is that we have to create more jobs.

8. Live it up 狂欢一场
Example: The neighbors having been living it up ever since they won the sweepstakes.

9. Have a mind to 想做某事, 计划做某事
Example: The service in our hotel was terrible. I have a mind to write a letter of complaint.

10. Be in the mood 想要做某事

Example: She is not in the mood for playing cards and says she should really be preparing her lecture notes.

来源：英语角