4 sentences

1. 麦哲伦率领船队完成了首次环球航行。

   Mài​zhé​lún shuài​lǐng chuán​duì wán​chéng le shǒu​cì huán​qiú háng​xíng.

   Magellan led his fleet to complete the first circumnavigation of the globe.

   Source: Dong Chinese Dictionary

2. 他想要独自一人环球航行，这简直是异想天开。

   tā xiǎng yào dú​zì yī rén huán​qiú háng​xíng, zhèi jiǎn​zhí shì yì​xiǎng​tiān​kāi.

   His plan to sail around the world alone is simply a pipe dream.

   Source: Dong Chinese Dictionary

3. 在他的再三怂恿下，我终于决定辞职去环球旅行。

   zài tā de zài​sān sǒng​yǒng xià, wǒ zhōng​yú jué​dìng cí​zhí qù huán​qiú lǚ​xíng.

   Under his repeated egging on, I finally decided to quit my job and travel the world.

   Source: Dong Chinese Dictionary

4. 环球经济正面临前所未有的挑战。

   huán​qiú jīng​jì zhèng miàn​lín qián​suǒ​wèi​yǒu de tiǎo​zhàn.

   The global economy is facing unprecedented challenges.

   Source: Dong Chinese Dictionary