We do not deal in low class silver jewels.

我们不经营低档的银饰。

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In the study of optical properties of low class crystal system, the identification of optic sign has important meaning to unknown crystal and mineral determination.

在低级晶族光学特性的研究中，光性符号的确定对未知晶体及矿物的鉴定有着重要的意义。

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The cost growth and efficiency falling of labor resource in China result from surplus of low class labor force and lack of high class labor force in industry distribution.

我国劳动资源成本上升和效率下降正是产业分工低端劳动资源过剩和产业分工高端劳动资源数量不足的具体体现。

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We video clipped the class as Professor Low taught the NBA students and then converted them to CDs.

在Low教授上课时,我们录下整个上课过程,然后刻成光盘。

麻省理工公开课 - 媒体、教育、市场课程节选

who would be typically working class on a low income.

他们是典型低收入的工人阶级。

关于伦敦的全部 - SpeakingMax英语口语达人

Mycroft regarded his younger brother's liking to paw at grass blades for clues as low-class, and vaguely amusing.

FORBES: CEOs for the next century

But in the 18th century, after political union with England, the Scots did their best to stamp out their own tongue believing that it was coarse low-class stuff in comparison with the finer words being spoken by London's elite.

ECONOMIST: Scots English

Moreover, the FDA proposes to reclassify sunlamp beds from class I (low risk) to class II (moderate risk) and require manufacturers to meet prescribed exposure tolerances.

FORBES: If Tanning Beds Were A Drug, They'd Be Illegal