laborious
词形变化：
副词: laboriously | 名词: laboriousness |
同义词：
hand | worker | manual worker | blue-collar worker | workhand | drudge | employee | slave | navvy | peasant | jack | labourer |
反义词：
词义辨析：
同义参见:
tiresome
strenuous
difficult
arduous
complicated
exhausting
exacting
painful