Cocomo
abbr. Constructive Cost Model 建筑成本模型
??? 情景例句
555-7700. 555 7700
555-7700. 555 7700
Vows made in storms are forgotten in calms.
激動時所立的誓，平靜時會忘記的。
They aren't very busy!
他們不很忙吧！