I used a long exposure for this one.

我这张照片用的曝光时间长。

《牛津词典》

It is possible, however, to view the colors in a moonbow using long exposure photography.

然而，使用长时间曝光摄影可以观察到月虹的颜色。

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You could use a tripod and a long exposure time.

你可以用三角架，并加长曝光时间。

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But she says the research does show the need to study whether or not there are long-lasting effects of repeated exposure over several years.

VOA: special.2011.03.02

Memory cells are long lasting cells that remember this exposure and can respond very quickly on second exposure.

记忆细胞可以长时间记忆与抗原的接触,并在再次免疫中迅速做出应答

耶鲁公开课 - 生物医学工程探索课程节选

But you do, in fact, have to worry about long-term exposure, cyanide poisoning in terms of long-term effects in certain populations that do get the bulk of their carbohydrates from this root, from the root of the Cassava plant.

但是你确实，不得不担心长时间的接触，氰化物的慢性中毒会对,从木薯根中获取大部分,碳水化合物的部分人群产生影响。

麻省理工公开课 - 化学原理课程节选

"Long exposure and no food or water takes a toll, " RunningWolf said.

CNN: In Oak Grove, three tree-sitters remain

That small, hazy picture shows a ghostly climber (the effect of the long exposure required) slogging up a snow field on the Wetterhorn.

WSJ: Photographic Balancing Acts | Swiss Alpine Museum | He Cut a Fresh Path in Mountain Photography | By Michael J. Ybarra

The disaggregated report showed managed-money accounts cut their net long exposure to 25, 100 lots for futures and options combined from 25, 791 the previous week.

FORBES: CFTC Data: Funds Trim Gold, Silver Length Slightly; Next Report To Be 'Much More Telling'