1 sentence

1. 这种球是用高弹性的胶制成的，回弹很快。

   zhè zhǒng qiú shì yòng gāo tán​xìng de jiāo zhì​chéng de, huí​tán hěn kuài.

   This ball is made of highly elastic rubber and bounces back quickly.

   Source: Dong Chinese Dictionary