The page prompt contents are not translated into Chinese. (Such as "Searching for a route")

~$ system-image-cli -i
current build number: 92
device name: turbo
channel: ubuntu-touch/rc-proposed/meizu.zh
last update: 2016-06-02 15:42:38
version version: 92
version ubuntu: 20160602
version device: 20160523-bcddc2c
version custom: 20160504-975-22-7

Steps:
1.Launch uNav app.
2.Long tap on the map to get a pin .
3.Tap on any position from the map view .

Actual results:
The page prompt contents still show English. (Such as "Searching for a route")

Expected results:
The page prompt contents are not translated into Chinese. (Such as "Searching for a route")