Translate not working for some strings
Although I know this solution is not best and structural method and is better solve this issue but sometimes we just need a solution and want save the time(maybe it be some issue with commons distributes.
Sometimes I do this trick in some projects 

if you want translate all keystring  in every where use 

 $('body').html( $('body').html().replace(/keystring /g, "TranslateString"));


and also if you want only some specified(with specified class and page class) string use 

$('.checkout-review .field-name-phone-mobile .field-label').html($('.checkout-review .field-name-phone-mobile .field-label').html().replace(/keystring /g, "TranslateString"));


You just need put one of them in JS file.