She is the best of mass guarantee factory.

本厂是保质保量的最佳厂家。

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We guarantee mass production and can meet our clients' request on delivery date.

我们能保证批量生产，并满足客户的交期要求。

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Improving the structure and promoting the use efficiency is the important guarantee to the mass sport job.

改善资源的结构、提高资源的利用效益是中国群众体育工作开展的重要保证。

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He said the measures would save lives even though there was no guarantee they would prevent all mass shootings.

NPR: In Connecticut, Biden Urges Action On Gun Control