| 例句 |
Those oil companies have diversified into alternative energy fields.那些石油公司已从事代用能源的多种经营。Of all the backup fuels, methanol is seen as the most promising alternative to gasoline.在所有的代用燃料中，甲醇被认为是最有前途的汽油代用品。There were few provisions available in exchange for food stamps: ersatz coffee, macaroni, small cubes of margarine.可以用来换取粮票的食物只有这些：代用咖啡、通心粉和小块的人造黄油。The new substitute sweetener is made from a wild plant.这一新的代用甜味剂是用一种野生植物制成的。 |