impost

• 指对进口商品征收的税或关税；在建筑中，指拱门底部支撑拱的墩座或起拱石。

A noun referring to a tax or duty levied on imported goods, or a stone in architecture that forms the lowest part of an arch and supports the arch's weight.

1. C1formal

   A tax or duty imposed on imported goods; a levy collected by a government.

   关税

   • The government increased the impost on foreign electronics.
   • Merchants complained about the heavy impost on luxury items.
   • The new trade agreement reduced several imposts on agricultural products.

   同义词assessmentdutyexciselevytarifftaxtoll

2. Architectural elementC2formal

   The lowest stone or block of an arch, from which the arch springs.

   建筑构件

   • The impost of the Roman arch was carved with intricate patterns.
   • The architect carefully measured the impost to ensure the arch's stability.
   • The stone impost supported the weight of the entire bridge arch.

   同义词springer