dust 是什么意思？ 它的过去式与过去分词是什么？

dust [d?0?5st]

n. 灰尘, 粉末, 尘埃

v. 拂去灰尘, 弄成粉末, 撒; 掸掉灰尘; 变得灰扑扑; 打扫; 喷撒农药

dusted,dusted

She moistened a tissue and gently wiped the dust off the necklace.

她沾湿了一块纸巾，轻轻擦去项链上的灰尘。

A filter traps dust from the air.

过滤网可存住空气中的尘埃.

The dust made him sneeze.

灰尘使他打了个喷嚏