monitor

v. /ˈmɑːnɪtər/ B1

监控；监测

To watch and check something carefully over a period of time.

仙境例句

From her high window, grown-up Alice monitored the moon each night for a smile like the Cheshire Cat's.

长大的爱丽丝从高高的窗口每晚观察月亮，看它会不会露出柴郡猫那样的笑。