adj.费力的;勤劳的;辛苦的;
例句:
But it was a slow, laborious process.
但是,整个采石过程在当时却进展缓慢, 历尽艰辛.
Checking all the names was a slow, laborious job.
核对全部名字是件既慢又费劲的事.
They at their destination after a laborious journey.
经过艰苦的旅程,他们终于到达了目的地.