bigraph

例句：

1. 1. The historian has written a comprehensive biography of the great scientist.
   这位历史学家已经撰写了关于伟大科学家的详尽传记。
2. 2. The family kept their own annals, recording important events in their lives.
   这个家庭保持了自己的编年史，记录了他们生活中的重要事件。
3. 3. The author's latest book is a chronicle of his travels around the world.
   作者的最新作品是关于他环游世界的编年史。