The explanation came a week later. It was about ten o' clock at night; I had been dining by myself at a restaurant, and having returned to my small apartment, was sitting in my parlour, reading I heard the cracked tinkling of the bell, and, going into the corridor, opened the door. Stroeve stood bef...
请问一下。Many new buildings had expanded around it. However, it was still part of a royal palace and prison combined.中part什么用法呢?为什么它不加冠词而且又不是复数形式呢?希望老师帮忙,谢谢了!