求翻译：All of a sudden Peter leaped to his feet and ran hurriedly after the goats.Heidi followed him as fast as she could,for she was too eager to know what had happened to stay behind.Peter dashed through the middle of the flock towards that side of the mountain where the rocks fell perpendicularly to a great depth below,and是什么意思？

待解决 悬赏分：1 - 离问题结束还有