7 sentences

1. 难免会有悲伤和失落。

   nán​miǎn huì yǒu bēi​shāng hé shī​luò.

   Inevitably, there's grief and loss.

   Source: OpenSubtitles

2. 失落的世界就是地球。

   shī​luò de shì​jiè jiù shì dì​qiú.

   The lost world is Earth.

   Source: OpenSubtitles

3. 由于没能通过面试，他感到非常失落。

   yóu​yú méi néng tōng​guò miàn​shì, tā gǎn​dào fēi​cháng shī​luò.

   He felt very dejected because he failed the interview.

   Source: Dong Chinese Dictionary

4. 考古学家们致力于寻找那座失落的玛雅古城。

   kǎo​gǔ​xué​jiā men zhì​lì yú xún​zhǎo nà zuò shī​luò de Mǎ​yǎ gǔ​chéng.

   Archaeologists are dedicated to searching for that lost ancient Mayan city.

   Source: Dong Chinese Dictionary

5. 理想与现实之间的巨大落差让他感到很失落。

   lǐ​xiǎng yǔ xiàn​shí zhī​jiān de jù​dà luò​chā ràng tā gǎn​dào hěn shī​luò.

   The huge gap between ideal and reality left him feeling quite dejected.

   Source: Dong Chinese Dictionary

6. 历史学家试图从这些古老的遗迹中窥探失落文明的真相。

   lì​shǐ​xué​jiā shì​tú cóng zhè​xiē gǔ​lǎo de yí​jì zhōng kuī​tàn shī​luò wén​míng de zhēn​xiàng.

   Historians attempt to peer into the truth of lost civilizations from these ancient ruins.

   Source: Dong Chinese Dictionary

7. 他不小心把钱包失落在公交车上了。

   tā bù xiǎo​xīn bǎ qián​bāo shī​luò zài gōng​jiāo​chē shàng le.

   He accidentally left his wallet on the bus.

   Source: Dong Chinese Dictionary