Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Chinese
⇄
English
G
o
o
g
l
e
|
Forvo
|
+
to phrases
天然能源
ecol.
primary energy resources
;
primary energy
;
primary energy source
天然能源
:
8 phrases
in 5 subjects
Company name
1
Earth sciences
2
Ecology
2
Geology
1
Oil / petroleum
2
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">
Add
|
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">
Report an error
|
Get short URL
|
Language Selection Tips