long-term and arduous task
长期而艰巨的任务
an arduous trip over land and water
跋山涉水
to make an arduous journey
跋山涉水
to make an extremely arduous journey
餐风饮露
Long and arduous journey
长途跋涉
hard drug
(会在生理和心理上)致瘾的麻醉品
a glorious but arduous task
光荣而艰巨的任务
magnificent and arduous historic mission
宏伟而艰巨的历史性任务
extremely arduous condition
极端状态