as easy as taking off the cover or shaking down the dead leaves; quite an easy matter/……至如說(shuō)丞相 [公孫] 弘，如～耳。(《史記·汲鄭列傳》) It is such an easy matter for him to speak to Prime Minister Gongsun Hong.
發(fā)蒙振落fā ménɡ zhèn luò
發(fā)蒙：揭掉蒙在眼睛上的障礙物。比喻輕而易舉。things easily accomplished without mental effort, quite an easy matter