He did a lot of research and travelled around the USA looking for information about his ancestors.
他做了大量的研究,在美国跑了许多地方,了解有关祖先的情况。
I think it is important to understand the relations between parents and their children. They spend time, energy and money in bringing up children and providing them with what they need. Then, as with young birds, the time comes for the young to leave. As