Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
Danish
Dutch
French
German
Greek
Italian
Portuguese
Russian
Spanish
+
G
o
o
g
l
e
|
Forvo
|
+
to phrases
operating command
This HTML5 player is not supported by your browser
math.
操作命令
Operating Command
:
5 phrases
in 2 subjects
Electronics
4
Technology
1
Add
|
Report an error
|
Get short URL
