adv.毫不费力地；轻易地
The wind blew stronger,and the little boat rampaged along effortlessly. 风刮得更猛烈了，小船毫不费力地飞速行驶。
Although trillions of cells meet this fate daily all are replaced as effortlessly as they are discarded. 虽然每天有无数血球遭此厄运，但是新的血球很轻易地就完全代替了它们，就像它们被轻易地抛弃掉一样。
