青竜: Azure Dragon

硫安: ammonium sulphate

榴弾: a high explosive

淹留: to stay in one place for a long time

円龍: / 円隆:

work done for free, unpaid work, uncompensated work / work done in vain, work with no favorable end result

to work for free, to work without pay or other compensation / to work in vain, to work with no favorable end result

(archaic, grammar) any word that declines or conjugates / (archaic, grammar) more specifically, a verb

prosperous (abbr. 隆々) / brawny, muscular

Abbreviation of 隆隆.