There is no systematic difference in membership between the group of mechanics who do first-time jobs and the group of those who do rework jobs.

在第一次工作的技工组和返工的技工组之间没有系统性差异。

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One of his most significant projects at Treasury has been the Hope Now Alliance, a group of government and lending interests trying to rework consumers' mortgages to prevent foreclosures.

NPR: Ex-Rocket Scientist To Oversee Financial Bailout