how to translate "makes them keep themselves to themselves"into Chinese

how to translate "the fear of embarrassment makes them keep themselves to themselves"into Chinese

come on who can help you to translat it for you?no body! 什么意思 how to....? how do you ......? how to reach to happy? How to to distinguish diamond?? how to be rich How to get satisfied? how to study English how to happy? how to 治疗失眠 how to meditate?