n.密探；告密者；線人
v.作線民；告密；使生氣；苦惱
=narc.
Being a nark on the New York Police Force is a very dangerous job. 在紐約警察局當一名緝毒偵探是很危險的職業(yè)。
A nark cannot keep something in dark. 一個告密者是不會守秘密的。
He was feeling narked about being ignored. 他因為受到忽視而覺得苦惱。
