B2 a person who has the job of watching or noticing particular things监督员,核查员
More examples
Rosie was chosen to be monitor in class that day.
They are employed as monitors to make sure that the organization works within the law.
International monitors are keeping watch on the election process.
a machine that regularly tests something监控器,监测器
B2 a computer screen or a device with a screen on which words or pictures can be shown显示器,屏幕
a child in school who has special jobs to do(学校的)班长,年级长,教务助理生
C1 to watch and check a situation carefully for a period of time in order to discover something about it监控;监测;监视,密切注视
More examples
A 1200-strong military force will be on hand to monitor the ceasefire.
We need to monitor the transaction of smaller deals.
They'll use ultrasound to monitor her ovaries to see if they're responding to the treatment.
The babies in this unit have various devices attached to them that monitor the vital signs.
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