Undaunted by the enormity of the task, they began rebuilding the village.他们不畏任务艰巨，开始重建村庄。The job has a very steep learning curve. 这份工作的学习任务艰巨。It's hard work, but try to keep your spirits up. 任务艰巨，但要尽量保持乐观积极的态度。She found the duties of motherhood onerous.她发现做妈妈任务艰巨。