【明報專訊】"I saw Uncle Felix chasing a vampire," Teddy said. "Vampires don't exist," Angela scoffed. "Sure they do, and do you know how you get rid of（除去）one? You nail it down with a stake（木柱）," Teddy said. "You can't nail down something that doesn't exist," Angela frowned. To nail down is to fasten something to a wall, a tree, a floor, etc. "Except for vampires, you usually use nails to nail them down," Teddy grinned.