labourious
adj. 需要劳力的;费劲的
例句
It is widely acknowledged that computer and other machines have become an indispensable part of our society, which make our life more comfortable and less labourious.
广泛认为电脑和其他机器已成为现代社会不可缺少的一部分,它使我们的生活更舒适和少劳累。