1.requiring or apparently requiring no effort;

the swallows glided in an effortless way through the busy air

2.not showing effort or strain;

a difficult feat performed with casual mastery

1 . 容易的

effort 努力effortless容易的effraction 侵入

2 . 不費力的

earnest 認真的，誠摯的effortless不費力的，容易的egalitarian 平等主義的

3 . 不費力氣

The motion is effortless, efficient , and ground - covering ., 他的動作是不費力氣的 , 有效的和觸地的.

4 . 毫不費力的

Unit 16effortlessadj. 毫不費力的dreadful adj. 可怕的

1 . 出色的性能

his most effortless performance ever and it's the most difficult stuff to do .他有史以來最出色的性能，它是最困難的事情要做。

1 . 輕松優(yōu)美

Movement and Carriage An effortless graceful movement demonstrating endurance while covering ground efficiently ., 輕松優(yōu)美的動作 , 顯示出耐力和有效的步伐.

1 . 輕松的步態(tài)

the wrinkled forehead , tightly curled tail and swift , effortless gait ( resembling a racehorse trotting full out ) are typical of the breed .這個品種的典型特征是：前額有皺紋，尾巴緊緊卷曲，敏捷、輕松的步態(tài)（象賽馬在全速奔跑)。

1 . 不費力地

Lenny swooped Tom up in one swift , gentle , effortless motion .尼敏捷、溫柔、不費力地扶起湯姆。