About TED-Ed:回饋循環:萬物如何去依循 results of 10,000
02:44
04:09
09:08
04:06
03:20
12:09
13:50
07:01
05:34
59:40
02:15
01:13
16:36
18:47
31:15
15:07
15:59
07:13
02:05
10:40
03:41
15:39
01:51
10:58
07:48
15:02
05:18
04:33
15:41
02:43
07:49
04:22
31:55
07:13
10:33
04:55
01:24
17:32
01:03
05:32
15:15
03:40
01:34
06:28
07:05
04:44