arduous

['ɑ:djuəs]

adj. 费力的, 辛勤的, 险峻的

例句与用法：

Negotiating a reduction in nuclear arms is a long and arduous undertaking.

有关削减核武器的谈判是一项漫长而艰苦的工作

He mastered these words through the arduous consultation of the dictionary.

通过勤查字典，他掌握了这些单词。

Although the work was arduous, he finished it in a short time.

虽然这项工作很费力，他仍然很快就做完了。

It's an arduous task.

这是一项艰巨的任务。

词形变化：

副词: arduously | 名词: arduousness |

详细释义：

a.

1. 艰巨的; 费力的; 困难的

It must have been a very arduous task to build the pyramids.

当时建造金字塔肯定是件万分艰巨的事。

2. 努力的; 使劲的

He made an arduous effort to keep up with the rest of the class.

他努力跟上班上其他同学。

3. 陡峭的, 难攀登的

an arduous hill

陡峭的山