Keeping the garden tidy all year round can be a laborious task.

保持院子全年整洁会是一项费时费力的任务。

《柯林斯英汉双解大词典》

Milton has just been lamenting the fact that the laborious days of the poet might not result in a sudden blaze of fame.

弥尔顿一直在为诗人辛苦的日子可能不会带来突然的名声而感叹。

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Quilting a bed cover can be laborious.

缝制一个床罩会很费力的。

《柯林斯英汉双解大词典》

Milton has just been lamenting the fact that the laborious days of the poet might not result in a sudden blaze of fame.

弥尔顿正在为寂寂无名的诗人的,艰苦的生活而悲叹。

耶鲁公开课 - 弥尔顿课程节选

KeepShot has turned photo books from a laborious chore to a fun and less intimidating iPad experience.

WSJ: Review of KeepShot: Hassle-Free Photo Books in One Couch Sitting

To get the seeds to breed true the farmers have to cross-pollinate the plants, a laborious task that keeps a peak of a dozen workers busy for several months on just one acre.

FORBES: Magazine Article

It's a laborious process, requiring half a day to fill a chilled vial with 50 million to 150 million stem cells.

FORBES: Magazine Article