how to translate the fields
function getEcommerceFields() {
$fields = new FieldSet(
new HeaderField('Personal Information', 3),
new TextField('FirstName', 'First Name'),
new TextField('Surname', 'Surname'),
new TextField('HomePhone', 'Phone'),
new TextField('MobilePhone', 'Mobile'),
new EmailField('Email', 'Email'),
new TextField('Address', 'Address'),
new TextField('AddressLine2', ' '),
new TextField('City', 'City'),
new DropdownField('Country', 'Country', Geoip::getCountryDropDown(), self::findCountry())
);
and so on like amount, i have multilingual site