She talked about the period of adolescence.

她说的是青春期。

However, now they are becoming an extended period of adolescence, during which many of today's students are not shouldered with adult responsibilities.

然而，现在他们正在成为青春期的延长期， 在这段时间里， 今天的许多学生并没有肩负成人的责任。

No, that's right. She talked about the period of adolescence. This noun, adolescence, is the period when someone is developing from a child into an adult and it more or less is the same as the teenage years.

没提到，是的。她谈到了青春期。" 青春期" 这个名词是某人从孩子发育到成年人的时期，而且或多或少那就和青少年时期一样。