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  1. ... Airlines failed to subject dozens of jets to mandatory inspections because it didn’t want to take the jets out of commercial...

  2. ...是很難大幅降低的地方 要刪減政府預算就只能從政府部門下手, 減少經費 法定( mandatory )必須開銷 social security 社會安全基金 medicare 老人醫療保險medicare 窮人醫療保險unemployment...