As an estimate of the effort required to implement Windows 7, Microsoft employed 1,000 or so developers, organized into 25 teams, with each team averaging 40 developers.
作为对实施 Windows 7所需工作量的估计，微软雇佣了大约1,000名开发人员，组成了25个团队，每个团队平均有40名开发人员。