2015年PETS4考试写作精选短语4
发布时间：2009/12/12 10:04:37 来源：城市学习网 编辑：admin
back to square one
An expression used to mean that it is necessary to stop whatever one has done on a new project and to start again completely.
EXAMPLE:
When our experimental design for a new solar automobile failed totally on the first day of testing, our engineering department knew it was back to square one.
