(especially of a task, process, or journey)requiring considerable effort and time
(尤指任务、过程或旅行)费时费力的
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years of laborious training 数年的艰苦训练
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the work is very slow and laborious .工作进展很缓慢,很费力。
(especially of speech or writing style)showing obvious signs of effort and lacking in fluency
(尤指讲话,写作风格)造作的,不流畅的
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his slow laborious style .他拖沓、不流畅的风格。
"late Middle English (also in the sense ‘industrious, assiduous’): from Old French