Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
English
⇄
Chinese
G
o
o
g
l
e
|
Forvo
|
+
The problem was not solved completely until the invention of the marine chronometer in the eighteenth century
watchm.
这个问题直到十八世纪发明了航海精密计时钟才得以解决
Add
|
Report an error
|
Get short URL
|
Language Selection Tips