农场主去年生产了太多土豆，结果因为供过于求而价格暴跌。

The farmer ___overproduced potatoes last year, causing prices to drop due to oversupply.

这家工厂过度生产廉价玩具，导致产品质量下降。

The factory tends to ___overproduce cheap toys, which lowers their quality.