英和和英

under surveillance

to keep watch over something

the role of keeping watch

an observation-post

the line on the monitor vacillated

to inspect

a person who supervises something

the effective ruler

a person who secretly oversees or observes something

actual number of personnel

demand for a product or service

an army of observation

actual performance

be kept under surveillance

take over the watch

to watch one's movements―keep an eye on one's movements

virtual reality

an actual experience

a lookout man

to supervise something

to break through police surveillance

the real state of affairs

the actual effect

the condition of actual circumstances

practical experience

practical experience

practical experience

in practical applications

actual scenery

to supervise the manoeuvres