2001年，奥巴马与人合作，草拟一件法案，为那些帮助廉价房建设捐出土地，建筑，或建材的人提供税收抵免优惠。
In 2001, Obama was coauthor of a law that created a tax credit for people who donate land, buildings or construction material to help develop low-income housing.
几何的研究是训练的成功的工程师、科学家、建筑师和草拟的重要组成部分。
A study of geometry is an essential part of the training of the successful engineer, scientist, architect, and draftsman.
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