2 sentences

1. 他一心想出人头地，所以工作非常卖力。

   tā yī​xīn xiǎng chū​rén​tóu​dì, suǒ​yǐ gōng​zuò fēi​cháng mài​lì.

   He is determined to stand out, so he works very hard.

   Source: Dong Chinese Dictionary

2. 他是个很有野心的年轻人，渴望在商界出人头地。

   tā shì gè hěn yǒu yě​xīn de nián​qīng​rén, kě​wàng zài shāng​jiè chū​rén​tóu​dì.

   He is an ambitious young man who is eager to make a name for himself in business.

   Source: Dong Chinese Dictionary