In 2007, the U.S. grew 12.8 million metric tons of hard red spring wheat, which is primarily used to make bread. 2007年，美國收獲了一千兩百八十萬公噸的硬紅春小麥，這些主要被用來制作了麪包。
權威例句
There is thus little threat to Kansas City's main product, futures and options on hard red winter wheat. ECONOMIST: Grains of truth
His father, who seems to have been an intellectual but without much formal education, grew the hard red spring wheat of the northern prairies. ECONOMIST: Mancur Olson The