ef·fort·less /-fɝtləs/
(a.)容易的,不費力氣的
Ef·fort·less, a.
1. Making no effort.
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effortless
adj 1: requiring or apparently requiring no effort; "the swallows
glided in an effortless way through the busy air"
[ant: effortful]
2: not showing effort or strain; "a difficult feat performed
with casual mastery"; "careless grace" [syn: casual]