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adj.努力的；费力的；险峻的
1、ordurous───严酷的
2、arduously───adv.严酷地；费力地
3、viduous───里面
4、arduousness───n.艰难，艰苦，艰辛，奋斗
5、ardour───n.激情；热情；情欲；灼热
6、assiduous───adj.刻苦的，勤勉的
7、arenous───adj.[地质]砂质的；多砂的；沙砾般的
8、carduus───飞廉
9、verdurous───adj.碧绿的；清新的；生气勃勃的
1、The work was arduous.───这项工作很艰巨。
2、We must have patience in doing arduous work.───我们做艰苦的工作要有耐性。
3、May: Studying in the university is not easy, but it's not as arduous as you think.───阿美：大学的学习不那么容易，但也不是像你想象的那么枯燥。
4、But though he arduous law invent one " harvester " , ruler of kingdom scorn he and invention of him for with princess behind the ant.───不过尽管他辛辛苦苦法发明了一种“收割机”，但王国的统治者蚁后和公主还是看不起他和他的发明。
5、He never seeks credit for himself, but is always ready to take on arduous tasks.───他在荣誉面前从不伸手，但在艰巨任务面前却当仁不让。
6、If he is to become a revolutionary with an indomitable fighting spirit, he must be tempered in the arduous struggle from his youth.───若想成为一名具有不屈不饶的斗争精神的革命战士，必须从青年时DaiKai始接受严酷的淬炼。
7、However, he said, "The challenge is still severe, the task is still arduous and the time is pressing. "───然而他说：“形势仍然严峻，任务依然艰巨，时间非常紧迫。”
8、After the war against Japan, he made an arduous journey back to China and created an educational system in mechanical science in hardships.───抗战胜利后，他历尽千辛万苦回到祖国，在艰难中为新中国开创了力学科学教育体系。
9、Without a penny on him, he then undergoes an arduous but hilarious journey freeloading his way across America from Los Angeles to New York.───于是身无分文的杰克经历了一段充满艰辛却又逗趣十足的旅程，他靠着别人的帮助从洛杉矶到纽约横越了整个美国，返回家乡过圣诞节。