Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
French
German
Japanese
G
o
o
g
l
e
|
Forvo
|
+
to phrases
double echo
tech.
双回波
;
双重回声
double echo:
3 phrases
in 2 subjects
Air defense
1
Technology
2
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
