101 sentences for 成年 (chéng​nián) — page 6 of 6

101. 未成年人必须由成人陪同登上渡轮。

     wèi​chéng​nián​rén bì​xū yóu chéng​rén péi​tóng dēng shàng dù​lún.

     Minors have to be accompanied by an adult to board the ferry.

     Source: CCMatrix