(1) ek-labori (开始工作), labor-ado
(工作), laborajho (制成品), labor-ejo (作坊，车间), labor-ema
(勤劳的), labor-igi (使工作), labor-ilo (劳动工具), labor-isto
(工人),
labor-ulo (劳动者)
(2) mal-longa (短的), long-eco (长度),
long-ega (很长的), long-eta (略长的),
long-igi (延长), long-ighi (变长)
