發(fā)現(xiàn)… find out
lay〔put〕 one\\\'s finger on sth
The doctor was able to treat the disease although he could not put his finger on the exact cause.
醫(yī)生能治這種病,不過(guò)他不能指出確切的病因。
lay〔put〕 one\\\'s finger on wh-clause
Something\\\'s wrong with this room, but I can\\\'t quite put my finger on what it is.
這個(gè)房間里有些不對(duì)頭,但我無(wú)法明確地指出那是什么。
I know the name, but I can\\\'t quite put my finger on what\\\'s wrong with the engine.
我還沒(méi)弄清楚發(fā)動(dòng)機(jī)的毛病。
lay〔put〕 one\\\'s finger on sth
I haven\\\'t been able to lay my finger on the book you requested.
我不能找到你要的那本書(shū)。