子树

例句：

1. 1. The scientists are studying the genetic makeup of the offspring.
   科学家们正在研究后代的遗传构成。
2. 2. The offspring of the new species will be different from their parents.
   新物种的后代将与父母不同。
3. 3. The offspring of the old tree will bear fruit in its place.
   老树的后代将在其位置上结出果实。