aculeus

例句：

1. 1.Bees are important pollinators in many ecosystems.
   蜜蜂是许多生态系统中重要的传粉者。
2. 2.The bee is a small flying creature that collects nectar from flowers.
   蜜蜂是一种小型飞行生物，从花中收集花蜜。
3. 3.Honey is produced by bees and is used for various purposes.
   蜂蜜是由蜜蜂产生的，被用于各种目的。