•Peter might look a bit fierce, but actually he's fairly harmless.彼得看上去可能有点凶，但他是不会伤人的。

•There were those who found the joke offensive, but Johnson insisted it was just a bit of harmless fun.有人觉得这个玩笑有些讨厌，可是约翰逊却坚持认为这只是个无伤大雅的玩笑。