unlabored a. 未经耕作的, 不费力的, 容易的, 自然的, 流利的
Unlabored \Un*la"bored\, a.
1. Not produced by labor or toil. ``Unlabored harvests.''
--Dryden.
2. Not cultivated; untitled; as, an unlabored field.
3. Not laboriously produced, or not evincing labor; as, an
unlabored style or work. --Tickell.