ﻧﺎﻓﺬ ﺷﺪﻥ ﭘﯿﻤﺎﻥ
 Contract effectiveness

ﺑﻪ ﻣﻌﻨﺎی ﺷﺮوﻉ ﺗﻌﻬﺪﺍﺕ ﺩو ﻃﺮﻑ ﺍﺳﺖ.