Yet their plight was made worse by a series of 19th-century changes, including rapid deforestation, which stopped them from hunting, and the imposition of a tax on salt, which many had traded.

然而19世纪一连串的变化将他们本就困窘的境地变得更加糟糕：森林急剧退化使他们无法捕猎，很多人经营的盐业生意因为盐税而受影响。

China speeds up imposition of new fuel tax China has accelerated plans to impose a tax on gasoline, diesel and kerosene to encourage conservation amid surging oil imports.

中国加快推行新的燃油税中国正加速推行对汽油、柴油和煤油征税的计划，以在石油进口剧升的压力下鼓励节能。

The key to understand material imposition principle is to define reasonably material imposition principle and grasp accurately its station in principle of tax law.

其中对于实质课税原则的合理界定以及对其在税法原则中地位的准确把握是理解实质课税原则的关键。

The sixteenth Amendment, which permits imposition of a federal income tax without appointment among the states.

第十六次修正案允许在各州之间不按照比例分配征收联邦所得税。