他用手背拂去一滴眼泪。

He ___brushed ___away a tear with the back of his hand.

她把掉在桌子上的面包屑扫掉。

She ___brushed ___out the crumbs that had fallen on the table.

端上蛋糕前，她仔细地拂去了多余的糖粉。

Before serving the cake, she carefully ___brushed ___off the excess powdered sugar.