1.sit down 坐下；扎营

They sat down by the roadside to take a rest.
他们在路旁坐下休息。

The army sat down before the town.
军队在城外安营扎寨。

2.start to 开始

There is a lot of room for creativity in all of this, but they have little chance of developing a complete product, from start to finish, without using other software for key features.
在这个过程中他们有足够的创造空间，但是他们却很少有机会开发一个完整的产品，从开始到完成，不用任何其它软件作为主要的特性。

Through some discussions, we succeeded in showing that they would have significant insight into the progress of the project from start to finish.
通过一些讨论，我们成功的显示了客户从项目的开始到结束都应该对项目的进展有足够的了解。