About TED-Ed:回饋循環:萬物如何去依循 results of 10,000
04:13
02:54
04:15
01:48
17:17
12:23
07:06
04:52
01:37
04:03
34:46
09:13
03:30
08:08
43:41
02:19
01:19
03:52
08:07
03:46
03:01
05:17
27:05
01:37
19:16
01:36
07:22
01:44
02:33
13:23
04:04
02:55
02:14
01:15
12:51
01:56
09:42
18:32
03:10
17:59
01:21
02:03
11:54
03:42
13:21
02:12