工人们用鼓风机清理了施工现场的灰尘。

The workers used a ___blower to remove dust from the construction site.

他们发现有个告密者向警方泄露了计划。

They discovered there was a ___blower who leaked their plans to the police.

到了给我打个电话。

Give me a call on the ___phone when you arrive.