那个小偷从钥匙孔中窥视。

The thief is peeping through a keyhole.

在正面和领带钥匙孔领口。

Keyhole with tie at front neckline.

安装后，门上无钥匙孔、密码键、磁卡槽等装置，使窃贼无法下手撬锁潜入。

After installation, no keyhole, no encryption key, no card slot, let thief can't do any thing.

门锁开启不灵活时，请往钥匙孔内加入适量的铅笔芯粉末再往来转动几次即可。

Please infuse with pencil powder into key-hole then running few times when door open is not flexible.