You may want to improve your pronunciation of "store" by saying one of the nearby words below:
Test your pronunciation on words that have sound similarities with store:
Tips to improve your English pronunciation:
Break store down into sounds: — say it out loud and exaggerate the sounds until you can consistently produce them.
Record yourself saying store in full sentences, then watch yourself and listen. You'll be able to mark your mistakes quite easily.
Work on your intonation: stress, rhythm and intonation patterns are not easy to master in English but they are crucial to make others understand what you say. It's what expresses the mood, attitude and emotion.