keyholes
n. 鎖眼,鑰匙孔( keyhole的名詞複數 )
A keyhole is the hole in a lock that you put a key in.
I looked through the keyhole.
我透過鎖眼向裡看。
Ear trumpets for listening through keyholes!
耳機,能插到鑰匙孔裡偷聽說話!