Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
G
o
o
g
l
e
|
Forvo
|
+
to phrases
unrestricted sample
This HTML5 player is not supported by your browser
adv.
随机抽样
;
随机样本
busin.
无约束样本
unrestricted sample
:
5 phrases
in 2 subjects
Mathematics
1
Technology
4
Add
|
Report an error
|
Get short URL
