ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
แสดงแผงควบคุมโปรแกรมเล่น
เล่นอัตโนมัติ
เล่นใหม่
A great lecture! Its a shame that so few people will take the time to listen just because he isn't one of the big speakers they are used to.
A great lecture! Its a shame that so few people will take the time to listen just because he isn't one of the big speakers they are used to.