1. This room has become historical.
    这个房间成为了具有历史意义的房间。

2. The illness had not really left her; it had gone into hiding, instead, and the physical and mental after-effects of that historical August 6, 1945, would trouble Kaz all the rest of her life.
    但是她的病没真正除根，只不过是潜伏起来了而已。历史上这个让人难忘的1945年8月6日给和子的肉体和精神上所带来的后遗症将折磨她的余生。

3. He was a great and historical personage.
    他是一位伟大的历史人物。

4. You will find that book in the historical section of the library.
    你会在图书馆的历史书部分中找到那本书的。