6 sentences

1. 她正在周游世界。

   tā zhèng​zài zhōu​yóu shì​jiè.

   She is traveling around the world.

   Source: Tatoeba

2. 她周游世界各地。

   tā zhōu​yóu shì​jiè gè dì.

   She traveled all over the world.

   Source: Tatoeba

3. 他周游世界各地。

   tā zhōu​yóu shì​jiè gè dì.

   He traveled around the world.

   Source: Tatoeba

4. 他花了一年时间周游列国，增长了不少见识。

   tā huā le yī nián shí​jiān zhōu​yóu liè​guó, zēng​zhǎng le bù​shǎo jiàn​shi.

   He spent a year traveling through various countries and gained a lot of experience.

   Source: Dong Chinese Dictionary

5. 这个马戏团正在全国各地周游演出。

   zhè​ge mǎ​xì​tuán zhèng​zài quán​guó gè dì zhōu​yóu yǎn​chū.

   This circus is touring and performing all over the country.

   Source: Dong Chinese Dictionary

6. 他计划在暑假期间周游全省的名胜古迹。

   tā jì​huà zài shǔ​jià qī​jiān zhōu​yóu quán shěng de míng​shèng​gǔ​jì.

   He plans to tour the province's scenic spots and historic sites during the summer break.

   Source: Dong Chinese Dictionary