农民们的辛勤劳动换来了丰收的喜悦。

The farmers' hard ___labor brought them a joyful harvest.

她经历了两天的分娩过程才生下孩子。

She endured two days of ___labor before giving birth to the baby.

工党承诺改善工人的工作条件。

___Labour has pledged to improve working conditions for workers.