If someone purloins something, they steal it or borrow it without asking permission.
例句
Each side purloins the other's private letters.雙方彼此都偷對方的私人信件。
英漢詞典釋義
vt.
偷竊
Japan and Korea purloin American technology as it comes off the drawing boards with the help of their governments.日本和韓國，在他們政府的幫助下，只要美國的技術一離開設計圖板就把它偷走了。