Qt quick use Label to show Chinese words problems

[story1225]

I created a qt quick application in QtCreater 3.1.2, and I added some Label and Text to show chinese words. Running it on PC is corrected, but running on a real android device with api-10(sdk version 2.3.3) is uncorrected. Test running on higher sdk device such as Samsung was corrected. My code is here:

import QtQuick 2.2
import QtQuick.Controls 1.1

ApplicationWindow {
visible: true
width: 480
height: 640

Text {
    id: id1
    text: qsTr("你好1")
    anchors.top: parent.top
    anchors.left: parent.left
    anchors.right: parent.right
    height: 100
    font.pixelSize:  55
}

Label{
    id: id2
    text: qsTr("你好2")
    anchors.top: id1.bottom
    anchors.left: parent.left
    anchors.right: parent.right
    height: 100
    font.pixelSize:  55
}

Text {
    id: id3
    text: qsTr("你好3")
    anchors.top: id2.bottom
    anchors.left: parent.left
    anchors.right: parent.right
    height: 100
    font.pixelSize:  55
    font.weight: Font.Black;
}

}

The result on api-10 was here:
http://photo.163.com/story2010/#m=1&aid=271112093&p=1