keyhole

n.

锁眼，钥匙孔；

复数：keyholes

keyhole surgery[医]洞眼手术（等于小切口手术）

1. His eyes were glued to the keyhole.
   他的眼睛紧贴在钥匙孔上。
2. There is one keyhole and about a zillion keys.
   这里只有一个钥匙孔，却有无数把钥匙。
3. Every age has a keyhole to which its eye is pasted.
   每个时代都有一个钥匙孔,通过它可以张望世界。

1. We know that he is a keyhole investigator.
   我们晓得他是个暗地打听的调查人员。

Keyhole limpet hemocyanin (KLH): a biomedical review.
“Keyhole” method for accelerating imaging of contrast agent uptake
Bayesian Models for Keyhole Plan Recognition in an Adventure Game
Bayesian Models for Keyhole Plan Recognition in an Adventure Game
The supraorbital keyhole approach to supratentorial aneurysms: concept and technique.
Looking Through a Keyhole at the Tobacco Industry: The Brown and Williamson Documents
Laboratory and clinical development of single keyhole umbilical nephrectomy
The supraorbital keyhole approach to supratentorial aneurysms: concept and technique. Surg Neurol 49(5):481-489; discussion 489-490
Capacity of multiple-antenna fading channels: spatial fading correlation, double scattering, and keyhole
Capacity of multiple-antenna fading channels: spatial fading correlation, double scattering, and keyhole