Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
G
o
o
g
l
e
|
Forvo
|
+
to phrases
practical problem
This HTML5 player is not supported by your browser
tech.
实际问题
practical problems
:
6 phrases
in 3 subjects
Agriculture
1
China
3
Scientific
2
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
