London, let me tell you, Miss Lally, does not lie open and undefended; it is a fortified place, fossed and double-moated with curious intricacies.

伦敦，让我告诉你，拉莉小姐，它并不是毫无防备地敞开着；这是一个设防的地方，有奇特的复杂结构和双护城河。