| tiring(adjective, characteristic, harshness, roughness) |
| work in progress(expression, activity, business, work, job) |
| strenuous(adjective, characteristic, harshness, roughness) |
| work out(verb, expression, phrasal verb, activity, business) |
| arduous(adjective, characteristic, harshness, roughness) |
| backbreaking(adjective, characteristic, harshness, roughness) |
| exhausting(adjective, characteristic, harshness, roughness) |
| fatiguing(adjective, characteristic, harshness, roughness) |
| harsh(adjective, characteristic, harshness, roughness) |
| heavy(adjective, characteristic, harshness, roughness) |
| laborious(adjective, characteristic, harshness, roughness) |
| punishing(adjective, characteristic, harshness, roughness) |
| severe(adjective, characteristic, harshness, roughness) |
| trying(adjective, characteristic, harshness, roughness) |
| work on(verb, expression, phrasal verb, activity, business) |
| blood work(expression, idiom, activity, business, work) |
| dirty business(expression, idiom, activity, business, work) |
| dirty work(expression, idiom, activity, business, work) |
| grunt work(expression, idiom, activity, business, work) |
| sabrina work(expression, idiom, activity, business, work) |