n.(马的)跗节内肿,粗粘土,飞节内肿
They are talking about a story Mr. Wren wrote a story about a spavined horse.
他们正在谈雷恩先生写的一个故事,一匹破马的故事.
They are not talking a story Mr. Wren wrote aa spavined horse.
她们正在谈雷恩男士写的一个古代事件,一匹破马的古代事件.