她是个热心推广者，总是向朋友们推荐这家新开的咖啡馆。

She's a real ___plugger, always recommending this new cafe to her friends.

工人用木塞堵住了浴缸的排水孔。

The worker used a wooden ___plugger to block the bathtub drain.

牙医使用充填器将树脂材料压入龋洞中。

The dentist pressed the composite material into the cavity with a small ___plugger.