查询词典 expunging

Such an ink, suggests Bartosz Grzybowski of Northwestern University in Evanston, Illinois, could have all sorts of applications, from the obvious one of expunging a sensitive message after a few hours, to bus and train tickets that expire automatically after, say, a month.

他做了各种各样的实验，有的效果显著，诸如使纸上的重要信息在几小时后消失无踪；有的则耗时较长，如使火车或巴士月票在一定期限后，比如说在一个月后自动失效。Grzybowsk博士认为他要制造的就是这样一种材料。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。