工人们使用挖泥船清理河道中的淤泥。

Workers used a ___dredger to remove silt from the riverbed.

工人们用挖泥机清理河底的淤泥。

Workers used a ___dredger to remove silt from the riverbed.

她在烤面包前用糖粉筛子均匀地撒上糖粉。

She evenly sprinkled powdered sugar on the bread before baking using a ___dredger.