这种洗衣粉容易溶解在水中。

This laundry ___powder dissolves easily in water.

她买了一些爽身粉来保持皮肤干燥。

She bought some talcum ___powder to keep her skin dry.

猎人小心地将黑色火药装入他的步枪。

The hunter carefully loaded his rifle with black ___powder.