left corner bottom-up

例句：

1. 1. The engineer designedthe building from the left corner to thetop-down.
   工程师从左角到顶部自上而下设计了这座建筑。
2. 2. The company's strategy is to focus on the leftcorner of the market and then expand upwards.
   该公司的战略是专注于市场的左角，然后向上扩展。
3. 3. The team worked from thetop-down, ensuring everyone was onthe same page.
   团队从上至下工作，确保每个人都在同一页面上。