5 sentences

1. 他是一个前程远大的年轻人。

   tā shì yī gè qián​chéng yuǎn​dà de nián​qīng​rén.

   He is a young man with a very promising future.

   Source: Dong Chinese Dictionary

2. 他不幸染上了毒瘾，毁掉了前程。

   tā bù​xìng rǎn​shàng le dú​yǐn, huǐ​diào le qián​chéng.

   Unfortunately, he became addicted to drugs and ruined his future.

   Source: Dong Chinese Dictionary

3. 他因为贪赃枉法，毁掉了自己的前程。

   tā yīn​wèi tān zāng wǎng​fǎ, huǐ​diào le zì​jǐ de qián​chéng.

   He ruined his future because of corruption and perverting the law.

   Source: Dong Chinese Dictionary

4. 这种不负责任的行为会误了你的前程。

   zhè zhǒng bù fù zé​rèn de xíng​wéi huì wù le nǐ de qián​chéng.

   This kind of irresponsible behavior will ruin your future.

   Source: Dong Chinese Dictionary

5. 由于这个错误的决定，他亲手毁了自己的大好前程。

   yóu​yú zhè​gè cuò​wù de jué​dìng, tā qīn​shǒu huǐ le zì​jǐ de dà​hǎo qián​chéng.

   Because of this wrong decision, he personally ruined his own bright future.

   Source: Dong Chinese Dictionary