(informal)(of a project) be completely finished or ready
(非正式)（工程）完成，就绪
well, that's part one done and dusted.
这就是已经完成的第一部分。
used to convey a feeling of great disappointment or disillusion about something
令人失望的事物
the party would be dust and ashes if he couldn't come.
如果他不来，这个聚会会令人大失所望的。
things quieten down
混乱结束，骚乱平息，纷扰平静下来
she hoped that the dust would settle quickly and the episode be forgotten.
她希望这场混乱快些结束，这一段故事就此被忘却。
(N. Amer. informal)fall far behind someone in a competitive situation
(北美，非正式)远远落在某人的后面，望尘莫及
remain unused
被搁置，落满灰尘
some professors let their computers gather dust.
一些教授搁着他们的电脑不用，任其落满灰尘。
surpass someone or something easily
轻松胜过，远远胜于，比…强得多
today's modems leave their predecessors in the dust.
现在的调制解调器要远远胜于以前的。
find that a person has made a hasty departure
发现某人已匆匆离去
(informal)create a disturbance
(非正式)吵闹，引起骚乱，惹是生非
To restore to use
重新使用
dusted off last year's winter coat.
重又穿上去年的冬衣
Far behind, as in a race or competition
落后：落后，如在赛跑或竞争中落后于人
a marketing strategy that left our competitors in the dust.
把我们的竞争对手远远地抛在后面的市场策略
To go about a task with great energy and speed.
干得起劲：以极大的精力和速度做某项任务