Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
English
Russian
G
o
o
g
l
e
|
Forvo
|
+
Operator Services System
telecom., abbr.
OSS
Operator Service System
IT, abbr.
OSS
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
