Counter-espionage is the work of trying to stop someone spying on your country. Espionage is the secret watching and the stealing of secrets; counter-espionage is the other side of that game — catching the spies, blocking them, or feeding them false stories so they go home with the wrong picture.

Counter-espionagecounter-espionage這個字 is the work of trying to stop someone spying on your country指的是試圖阻止別人在你的國家從事間諜活動的工作。Espionage is the secret watching and the stealing of secretsespionage是祕密監視和竊取機密；counter-espionage is the other side of that gamecounter-espionage是這場遊戲的另一面 — catching the spies, blocking them抓間諜、阻止他們，or feeding them false stories so they go home with the wrong picture或是餵給他們假消息，讓他們帶著錯誤的情報回去。

It is a formal noun for the process, used by governments, secret services, and news about them, not in the market or the playground. People also put it in front of another noun: counter-espionage work, a counter-espionage team.

It is a formal noun for the process這是一個描述這個過程的正式名詞，used by governments, secret services, and news about them用在政府、情報機關和相關新聞裡，not in the market or the playground不會出現在市場或操場上。People also put it in front of another noun大家也會把它放在另一個名詞前面：counter-espionage work, a counter-espionage team像counter-espionage work（反間諜工作）、a counter-espionage team（反間諜小組）。

You will also see it written counterespionage, with no hyphen; it is the same word. Though actually, American offices often prefer counterintelligence, a wider word that covers protecting secrets in general, not only hunting foreign spies. Counter-espionage points more sharply at “stop their spies.” Films make it look fast and clever; a lot of the real work is slow checking.

You will also see it written counterespionage, with no hyphen你也會看到寫成沒有連字號的counterespionage，it is the same word是同一個字。Though actually, American offices often prefer counterintelligence不過美國官方其實比較常用counterintelligence，a wider word that covers protecting secrets in general這是一個更廣的字，涵蓋一般性的機密保護，not only hunting foreign spies不只是抓外國間諜。Counter-espionage points more sharply at 'stop their spies.'counter-espionage更明確指向「阻止對方的間諜」。Films make it look fast and clever電影把這種工作拍得又快又聰明，a lot of the real work is slow checking但實際上的工作大多是慢慢查核。