2 sentences

1. 他是一位著名的冒险家，曾探索过亚马逊雨林。

   tā shì yī wèi zhù​míng de mào​xiǎn​jiā, céng tàn​suǒ guo Yà​mǎ​xùn yǔ​lín.

   He is a famous adventurer who once explored the Amazon rainforest.

   Source: Dong Chinese Dictionary

2. 他在亚马逊丛林中进行了一次为期三个月的科考探险。

   tā zài Yà​mǎ​xùn cóng​lín zhōng jìn​xíng le yī cì wéi​qī sān gè yuè de kē​kǎo tàn​xiǎn.

   He conducted a three-month scientific expedition in the Amazon jungle.

   Source: Dong Chinese Dictionary