Array ( [0] => Array ( [title] => L5A [link] => https://www.youtube.com/embed/yGevTfA5nD4 ) [1] => Array ( [title] => L5B [link] => https://www.youtube.com/embed/zZvuBfk6oYY ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第5講 Predicate