When trolls become annoying, the flame wars too fiery, members move on, and pretty soon that happy online forum turns into a ghost town, or worse.

当巨魔成为恼人，激烈争论太急躁，会员离开，不久，快乐的网上论坛就变成了废墟，或者更糟糕。

youdao

He's the author of "Ghost Wars, " a book about the CIA in Afghanistan, and he's reported extensively from that country and Pakistan.

NPR: White House May Push to Preserve Pakistan Aid

Mr. STEVE COLL (Author, "Ghost Wars: The Secret History of the CIA, Afghanistan and Bin Laden, from the Soviet Invasion to September 10, 2001"): My pleasure, Jacki.

NPR: White House May Push to Preserve Pakistan Aid