高级 + 的 + Noun
高级 (gāojí) means "high-level," "advanced," or "premium." It is used to describe things of superior quality or a higher tier, such as 高级功能 (advanced features), 高级餐厅 (upscale restaurant), or 高级课程 (advanced course). It combines 高 (high) and 级 (level/grade).
这家高级餐厅的菜味道确实不一样。
Zhè jiā gāojí cāntīng de cài wèidào quèshí bù yíyàng.
The dishes at this upscale restaurant really do taste different.
你需要先完成初级课程,才能报名高级课程。
Nǐ xūyào xiān wánchéng chūjí kèchéng, cái néng bàomíng gāojí kèchéng.
You need to complete the beginner course first before you can sign up for the advanced course.
这款手机的高级功能很多,但我平时用不到。
Zhè kuǎn shǒujī de gāojí gōngnéng hěn duō, dàn wǒ píngshí yòng bú dào.
This phone has many advanced features, but I don't usually use them.