Talking about hobbies is a topic that should be mastered, since it is a recurrent theme of conversation.

谈论还好是一个应该掌握的话题，因为它是对话中反复出现的主题。

Another recurrent theme is the city's exoticism.

另一个反复出现的主题是这座城市的异国情调。

In your book, you outline very clearly some recurrent themes that you've seen in your case studies.

在您的书中，您非常清楚地概述了您在案例研究中看到的一些反复出现的主题。

From ancient bronze ware and jade carvings to modern paintings and sculptures, the depiction of dragons is a recurrent theme, reflecting the culture's enduring reverence for this mystical creature.

从古代青铜器和玉雕到现代绘画和雕塑，龙的描绘是一个反复出现的主题，反映了文化对这种神秘生物的持久崇敬。