请教hear from sb 和recive a letter from sb的区别和意思.

请教hear from sb 和recive a letter from sb的区别和意思. hear from sb. Hear from sb等于什么 hear from sb 的延续性动词 hear sb do 和hear sb doing 差别 Hear sb to do sth 和 hear sb doing sth hear about和hear from的区别. hear from 后加that从句可以吗hear from sb that...... hear from sb receive（此单词可能有误） a letter from sb get a letter from sb hear that 和hear sb do/doing 有什么区别? hear to do和hear sb.doing这些短语对吗 receive from和hear from的区别 hear sb.doing和hear sb.to and和or有什么区别? hear和hear of和hear from和hear about的区别 watch/see/hear+sb+do sth 和watch/see/hear+sb+doing sth hear sb do sth 和 hear sb doing sth 有什么区别? hear sb.do sth.和 hear sb.doing sth.怎么使用? hear from 是收到的意思?有没有hear sth from sb表示从某人那听说的用法?