Parents can now introduce the topic of climate change to their children at home.

父母们现在可以在家对他们的孩子提起气候变迁的话题。

First of all students relaxed and happy to introduce the topic of the main content of the lectures.

同学们首先以轻松愉快的话题引入了宣讲的主要内容。

You want to introduce the topic, then you want to address all of the points, the three points, and then you want some sort of conclusion.

简要地介绍一下话题，点明要回答的所有要点，最后你需要一个结尾。

Introduce the topic by asking students whose birthday is the latest or asking them what is the nearest festival they are expecting or that has passed.

根据具体上课时间询问学生最近的一个节日是什么，或者问谁的生日最近来引如话题：节日。