bumble-bee

例句：

1. 1.The bumble-bees are busy collecting nectar from flowers.
   大黄蜂们忙着从花中收集花蜜。
2. 2. Bees are important pollinators and play a crucial role in the ecosystem.
   蜜蜂是重要的传粉者，对生态系统起着至关重要的作用。
3. 3.Honey bees are known for their ability to produce honey and wax.
   胡蜂以其产生蜂蜜和蜡的能力而闻名。