“包修、包退、包换”的简称three guarantees

• 农林部对农机产品的试制和生产，重申必须实行“三包”制度。

  The Ministry of Agriculture and Forestry reiterated the need to implement the "three guarantees" system during the trial production and production of agricultural machinery products.

• 一些不法经营者挖空心思耍花招，以逃避其应负的三包法律责任。

  Some unscrupulous operators are racking their brains to come up with tricks to avoid their legal obligation to undertake the "three guarantees"