未成年人需要成年人的监护才能观看这部电影。

Minors need an ___adult guardian to watch this movie.

这部电影只适合成年人观看。

This movie is for ___adults audiences only.

尽管他很年轻，但他的思维方式非常成熟。

Despite his young age, he thinks in a very ___adult way.