U.S. aid的用法和樣例：
例句
- Hope for United States aid played a great part in the jockeying between contending factions.
爭取獲得美援的希望，大大促進了各派系的相互傾軋。 - Too many underdeveloped nations self-righteously insist that receiving American aid is their God-given right rather than a manifestation of American generosity.
太多落後國家理直氣壯地堅認接受美援是天賜權利，而非美國樂善好施的表現。
