Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
German
Russian
+
G
o
o
g
l
e
|
Forvo
|
+
functional constraints
This HTML5 player is not supported by your browser
busin.
职能约束条件
commer.
约束条件
functional constraint
This HTML5 player is not supported by your browser
IT
函数约束
Add
|
Report an error
|
Get short URL
