老师让我们做一个关于环保的专题报告。

Lǎoshī ràng wǒmen zuò yí gè guānyú huánbǎo de zhuāntí bàogào.

The teacher asked us to make a special report about environmental protection.

学校这周要开一个安全教育专题会。

Xuéxiào zhè zhōu yào kāi yí gè ānquán jiàoyù zhuāntíhuì.

The school will hold a special meeting on safety education this week.

今天的节目是旅游专题，介绍中国南方的城市。

Jīntiān de jiémù shì lǚyóu zhuāntí, jièshào Zhōngguó nánfāng de chéngshì.

Today’s program is a travel special, introducing cities in southern China.