Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Danish
Dutch
French
German
Greek
Italian
Portuguese
Spanish
+
G
o
o
g
l
e
|
Forvo
|
+
double-checking principle
This HTML5 player is not supported by your browser
nat.sc.
Grundsatz der doppelten Prüfung
Add
|
Report an error
|
Get short URL
