20 集
课程目录2/20 集可播放
1
good
3:322
how
3:52
3
fine
3:21未授权
4
thank和thanks
4:18未授权
5
what
4:55未授权
6
name
5:18未授权
7
nice
3:43未授权
8
number
4:45未授权
9
friend
3:48未授权
10
family
3:46未授权
11
well
4:01未授权
12
thank和thanks
4:18未授权
13
help
4:21未授权
14
welcome
4:32未授权
15
in
4:15未授权
16
ask
3:58未授权
17
think
4:23未授权
18
tidy
3:12未授权
19
always
3:39未授权
20
let
5:01未授权