Correct

锁孔

/ suǒkǒng / 
Strokes

Definition

keyhole

Example

As a Noun

keyhole; lockhole

1
Cóng
从
suǒkǒng
锁孔
tōukàn
偷看

spy through the keyhole

2
Cóng
从
suǒkǒng
锁孔
tōutīng
偷听

listen at the keyhole