有没有know sth 必须是know about sth吗

有没有know sth 必须是know about sth吗 know sth 与 know about sth有区别吗,know是及物还是不及物 know sth about sb有没有这个固定搭配? know about sth是什么意思? sb.know well about sth.有这种搭配吗? know more about sth 与 know about sth more区别? 有know sb do sth句式吗 know sth about和know about的区别 有没有know sb/sth (to be)/as这个词组? Does anybody know sth.about BBA I guess nobody know! know sb about sth 对还是 know sth about sb对 know about sb/sth和know sb/sth的中文、区别