A Dukakis adviser said [the use of ] substandard science curriculums was one of the reasons the U.S. was unable to keep up with foreign competitors.是什么意思_A Dukakis adviser said [the use of ] substandard science curriculums was one of the reasons the U.S. was unable to keep up with foreign competitors.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句