laborious

1. ADJ If you describe a task or job as laborious, you mean that it takes a lot of time and effort. 费时费力的

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。

2. laboriouslyADV 费时费力地[ADV with v]

...the embroidery she'd worked on so laboriously during the long winter nights. …那件她在漫长的冬夜里辛勤制成的刺绣品。