Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
German
⇄
Arabic
Basque
Bulgarian
Catalan
Chinese
Croatian
Czech
Danish
Dutch
English
Estonian
Finnish
French
Greek
Hungarian
Irish
Italian
Japanese
Latvian
Lithuanian
Maltese
Norwegian Bokmål
Polish
Portuguese
Romanian
Russian
Slovak
Slovene
Spanish
Swedish
Turkish
Ukrainian
G
o
o
g
l
e
|
Forvo
|
+
Systemtheorie
f
environ.
теорія систем
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
