航天飞机下一次太空使命安排在今年5月。到时候，发现号航天飞机将把日本希望号太空实验室的第二部分送到国际空间站。
The next shuttle launch is scheduled for May when Discovery is to deliver the second portion of the Kibo laboratory to the space station.
克斯特亚平稳地把车开上街头，艾薇塔抬头看着她妈妈在芭蕾舞学院二楼的办公室。
As Kostya eased the van onto the street, Ivetta looked up at her mother's office, on the second floor of the Ballet Academy.
对二恶英进行化学量化分析需要非常先进的方法，世界上只有数量有限的几个实验室能够做到。
The quantitative chemical analysis of dioxins requires sophisticated methods that are available only in a limited number of laboratories around the world.
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