The government has kept a lower cap on wheat exports than last year.

政府设定了比去年更低的小麦出口量上限。

In California's case, starting in 2013 the government will “cap” the amount of gases (such as carbon dioxide) that industry may emit, and gradually lower that cap.

具体到加州而言，从2013年起，加州政府将对工业排放气体（诸如二氧化碳）设置限制帽。而且会逐步缩小最高限额。

Between 2017 and 2021, President Trump lowered the refugee cap from 110,000 to 15,000, essentially gutting the refugee resettlement infrastructure that had existed for decades.

2017 年至 2021 年期间，特朗普总统将难民上限从 110,000 人降低到 15,000 人，基本上摧毁了已经存在数十年的难民安置基础设施。

In this scenario, the West retaliates by giving its oil price cap more bite, perhaps threatening Western infringers with huge penalties, toughening checks and lowering the cap.

在这种情况下，西方通过提高其石油价格上限来进行报复，可能会以巨额罚款、加强检查和降低上限来威胁西方的侵权者。