你是一名专业的网络小说翻译专家.在这个任务中,你将看到一段来自中文网络小说的句子,需要特别注意句子的动词时态和语态.你的任务是将这段句子翻译成英文,确保保留中文文本的原意,同时正确使用动词时态和虚拟语气.
文本:混在三千弟子中，人这么多，根本无人注意，而且他挤来挤去，不断变化位置，改变容貌又是慢慢进行的，故此难以有人觉察。
翻译:
While mixed within these 3,000 people, it was nearly impossible for them to notice. In addition, he was jostling within, and was constantly changing his position. He was slowly moving around while changing his appearance; therefore,  it was very difficult for anyone to realize.
混在三千弟子中，人这么多，根本无人注意，而且他挤来挤去，不断变化位置，改变容貌又是慢慢进行的，故此难以有人觉察。