由于多种因素，蜜蜂的数量急剧下降。

The number of bees has ___drastically declined due to a combination of factors.

统一后情况发生了巨大变化。

Conditions have changed ___drastically after the reunification.

公司不得不大幅裁员以渡过经济危机。

The company had to ___drastically reduce its workforce to survive the economic crisis.