Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Portuguese
⇄
Afrikaans
Arabic
Basque
Catalan
Chinese
Dutch
English
Estonian
Finnish
French
German
Greek
Hungarian
Icelandic
Italian
Korean
Polish
Russian
Spanish
Swedish
Turkish
G
o
o
g
l
e
|
Forvo
|
+
delineamento divisível em grupos hierárquicos
math.
分层分组设计
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
