Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
Danish
Dutch
Finnish
French
German
Greek
Italian
Portuguese
Russian
Serbian Latin
Spanish
Swedish
Ukrainian
G
o
o
g
l
e
|
Forvo
|
+
to phrases
optical frequency
el.
fréquence optique
optical frequency:
1 phrase
in 1 subject
Communications
1
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
