4 sentences

1. 只有基础巩固，建筑物才安全。

   zhǐ​yǒu jī​chǔ gǒng​gù, jiàn​zhù​wù cái ān​quán.

   A building is only safe if its foundation is solid.

   Source: Dong Chinese Dictionary

2. 巩俐是中国最著名的女演员之一。

   Gǒng Lì shì Zhōng​guó zuì zhù​míng de nǚ yǎn​yuán zhī yī.

   Gong Li is one of the most famous actresses in China.

   Source: Dong Chinese Dictionary

3. 学生需要通过复习来巩固所学的知识。

   xué​sheng xū​yào tōng​guò fù​xí lái gǒng​gù suǒ xué de zhī​shi.

   Students need to consolidate the knowledge they have learned through review.

   Source: Dong Chinese Dictionary

4. 海马在人类空间导航和记忆巩固中起着关键作用。

   hǎi​mǎ zài rén​lèi kōng​jiān dǎo​háng hé jì​yì gǒng​gù zhōng qǐ zhe guān​jiàn zuò​yòng.

   The hippocampus plays a key role in human spatial navigation and memory consolidation.

   Source: Dong Chinese Dictionary