机关: mechanism, gear, machine-operated, office, agency, organ, organization, establishment, institution, body, stratagem, scheme, intrigue, plot, trick...
冷却: to cool off, cooling...
事: matter, thing, item, work, affair...
种类: kind, genus, type, category, variety, species, sort, class...
更加: more (than sth else), even more...
了解: to understand, to realize, to find out...
直到: until...
再三: over and over again, again and again...
审核: to audit, to investigate thoroughly...
