watcher
US /ˈwɑː.tʃɚ/
UK /ˈwɒtʃ.ər/
名词
1.
观察者, 旁观者
a person who watches something, especially an event or activity
示例:
•
The crowd of watchers grew as the parade approached.
随着游行队伍的临近，围观者的人群越来越大。
•
He was a silent watcher from the sidelines.
他是一个沉默的旁观者。
2.
监测器, 监视器
a device that monitors or records something
示例:
•
The security camera acts as a constant watcher of the premises.
监控摄像头是场所的持续监视器。
•
A heart rate watcher can help monitor your health during exercise.
心率监测器可以帮助您在运动时监测健康状况。