HSK 7-9
监控
jiānkòng动
to monitor
保安通过监控发现异常。
Bǎo ān tōng guò jiān kòng fā xiàn yì cháng.
The security guard spotted an anomaly through the monitoring system.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
Appears across levels (7-9) in the HSK 3.0 word list.