To attach the preparatory to the senior school these three classes were known officially, on speech days and in reports, as upper, middle, and lower second.

作为高中的预备班，在演讲日和报告中，这三个班被正式称为上、中、下二班。

youdao

Children of educated and upper-middle-class parents turn out to be far more curious, even at early ages, than children of working class and lower class families.

受过教育的孩子以及中上层家庭的孩子甚至在很小的时候就比工人阶级和下层家庭的孩子更有好奇心。

youdao

Children of educated and upper-middle-class parents turn out to be far more curious, even at early ages, than children of working-class and lower-class families.

比起工人阶级和下层家庭的孩子，受过教育的孩子以及中上层家庭的孩子甚至在很小的时候就更有好奇心。

youdao

All of the 7- to 12-year-olds are from lower-middle to upper-middle socioeconomic communities, said Harrison, a professor of communication studies at the University of Michigan.

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If a compromise cannot be reached, he wants Mr Abe to use his remaining authority to seek a two-thirds majority in the lower house to overrule the upper house.

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Many elements of the reform package were approved by the Bundestag - the lower house - in January and have become law but the upper house had continued to block some important elements.

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