3 sentences

1. 这种做法在业内非常普遍。

   zhè zhǒng zuò​fǎ zài yè​nèi fēi​cháng pǔ​biàn.

   This practice is very common in the industry.

   Source: Dong Chinese Dictionary

2. 业内人士普遍看好该技术的发展前景。

   yè​nèi rén​shì pǔ​biàn kàn​hǎo gāi jì​shù de fā​zhǎn qián​jǐng.

   Industry insiders are generally optimistic about the development prospects of this technology.

   Source: Dong Chinese Dictionary

3. 他通过多年的努力，确立了自己在业内的权威地位。

   tā tōng​guò duō nián de nǔ​lì, què​lì le zì​jǐ zài yè​nèi de quán​wēi dì​wèi.

   Through years of effort, he established his position as an authority in the industry.

   Source: Dong Chinese Dictionary