keyhole

钥匙孔、锁孔、锁眼

She peeked through the keyhole to see who was inside.

她从钥匙孔偷看里面是谁。

微创的英式；多用于医学

He had keyhole surgery on his knee last month.

他上个月膝盖动了微创手术。

窥探的、窥私的贬义

The magazine is known for its keyhole coverage of celebrities.

这家杂志以窥探名人隐私的报导闻名。