The three Billy Goats Gruff were leaving their farm to look for food. But as they crossed a river, they came face to fang with the Terrible Troll.是什么意思_The three Billy Goats Gruff were leaving their farm to look for food. But as they crossed a river, they came face to fang with the Terrible Troll.在线翻译_英语_读音_用法_例句