whirr

例句：

1. 1. The helicopter was whirring overhead.
   直升机在头顶上嗡嗡作响。
2. 2. The bees were buzzing around the hive.
   蜜蜂在蜂巢周围嗡嗡作响。
3. 3. The engine whirred into life.
   发动机轰鸣着启动了。