7 sentences

1. 他不愿虚度大好年华。

   tā bù yuàn xū​dù dà​hǎo nián​huá.

   He does not want to waste the best years of his life.

   Source: Dong Chinese Dictionary

2. 我们不能失掉这个大好机会。

   wǒ​men bù néng shī​diào zhè gè dà​hǎo jī​huì.

   We cannot lose this great opportunity.

   Source: Dong Chinese Dictionary

3. 他把大好青春都耗费在游戏上了。

   tā bǎ dà​hǎo qīng​chūn dōu hào​fèi zài yóu​xì shàng le.

   He wasted his best years playing games.

   Source: Dong Chinese Dictionary

4. 他常常感叹自己错过了那个大好机会。

   tā cháng​cháng gǎn​tàn zì​jǐ cuò​guò le nà​gè dà​hǎo jī​huì.

   He often laments missing that great opportunity.

   Source: Dong Chinese Dictionary

5. 他今天心情大好，在席间尽量而饮，直到大醉。

   tā jīn​tiān xīn​qíng dà​hǎo, zài xí​jiān jìn​liàng ér yǐn, zhí​dào dà​zuì.

   He was in a great mood today and drank as much as he could at the feast until he was completely drunk.

   Source: Dong Chinese Dictionary

6. 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

7. 大家都觉得他很有才华，将来一定会有大好的前途。

   dà​jiā dōu jué​de tā hěn yǒu cái​huá, jiāng​lái yī​dìng huì yǒu dà​hǎo de qián​tú.

   Everyone thinks he is very talented and will surely have a bright future.

   Source: Dong Chinese Dictionary