resinoid group

例句：

1. 1.The resinous group is responsible for the maintenance of the forest ecosystem.
   树脂群组负责维护森林生态系统。
2. 2. The resinous grouping has been found to have antimicrobial properties.
   这种树脂群组被发现具有抗菌性质。
3. 3.The resinous grouping was used in ancient times as a means of communication.
   在古代，这种树脂群组被用作一种交流手段。