A spy satellite or spy plane obtains secret information about another country by taking photographs from the sky.
pictures from unmanned spy planes operated by the US military.
美国军方操控的无人间谍飞机拍摄到的图片。
spies
A spy is a person whose job is to find out secret information about another country or organization.
He was jailed for five years as an alleged spy.
他因被指控为间谍而被监禁了5年。
spies , spying , spied
Someone who spies for a country or organization tries to find out secret information about another country or organization.
The agent spied for East Germany for more than twenty years.
该特工为东德从事了二十多年的间谍活动。
East and West are still spying on one another.
东方和西方仍在相互暗中监视着。
If you spy on someone, you watch them secretly.
That day he spied on her while pretending to work on the shrubs.
那天他假装修剪灌木,却秘密地监视着她。