The following guidelines underlie many of the more specific criteria for evaluation which will be found later in this book and act as useful guides in approaching any materials evaluation exercise.是什么意思_The following guidelines underlie many of the more specific criteria for evaluation which will be found later in this book and act as useful guides in approaching any materials evaluation exercise.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句