stand by for redirection

stand by for redirection stand by,stand up for,stand for 的区别. stand by = get ready for? stand by Stand By stand by stand by The letters PRC (stand by/stand for/ stand out/stand up) the people's Repulic of China请选, stand for stand by都有支持的意思,他们的区别是什么, stand for how can you ( ) and see him accused of something he didn't do?A.stand by B.stand for C.stand up D.stand out stand by sb. i will stand by forever stand by stand by me这首歌谁有 foverve stand by you forever stand by Forever stand by you.