laborieux (a) (effort) | arduo (a) (effort) |
laborieux (a) (effort) | duro (a) (effort) |
laborieux (a) (général) | difficile (a) (général) |
laborieux (a) (général) | laborioso (a) (général) |
laborieux (a) (effort) | strenuo (a) (effort) |
laborieux (a) (effort) | difficile (a) (effort) |
laborieux (a) (général) | duro (a) (général) |