句子使用时间状语从句描述事件发生的背景与结果。
Computer expert Dr. Wang An stated that the greatest lesson that influenced his entire life stemmed from an incident when he was six years old.
While walking under a tree, a bird's nest suddenly fell onto his head, with a tiny sparrow rolling out from it. He took a great liking to the little bird and decided to bring both the nest and the sparrow home. As he reached the door, he suddenly remembered his mother's rule against keeping small animals, so he gently placed the sparrow behind the door and went inside to ask his mother for permission.
计算机专家王安博士表示，影响他一生最大的教训源于他六岁时的一段经历。
当时王安正走在树下，一个鸟巢突然从树上掉落到他的头上，一只小麻雀随之滚了出来。他非常喜欢这只小鸟，于是便把鸟巢连同小麻雀一起带回了家。走到门口时，他突然想起妈妈规定不能养小动物，只好小心翼翼地将小麻雀放在门后，然后走进屋去请求妈妈的允许。