【正文】
” , “ 了解 ” U It was in middle school that I first obtained some knowledge about classical literature. Knowledge is power. His knowledge of environmental protection was too limited. “ 對懂 “ , ” 對有某種程度的了解 ” C He has a good knowledge of science.= He knows science well. A knowledge of English is useful. 7. personal experience personal 人身的,個人的,親自(與 “ 由他人代表的 ” 相對立) My personal opinion differs from yours. private 私人的,私有的 (與 “ 公有的 ” , “ 公共的 ”相對立) He came to Beijing on some private bussine