这两段话衔接得不太自然，需要再修改一下。

Zhè liǎng duàn huà xiánjiē de bú tài zìrán, xūyào zài xiūgǎi yíxià.

The connection between these two paragraphs is not very natural and needs to be revised.

这个城市的地铁和公交衔接得很好，出行非常方便。

Zhè gè chéngshì de dìtiě hé gōngjiāo xiánjiē de hěn hǎo, chūxíng fēicháng fāngbiàn.

The subway and buses in this city are well connected, making travel very convenient.

理论学习要和实际工作紧密衔接起来。

Lǐlùn xuéxí yào hé shíjì gōngzuò jǐnmì xiánjiē qǐlái.

Theoretical study should be closely linked with practical work.