go-ahead sequence

例句：

1. 1. The team needs to go ahead and start the project.
   团队需要先开始这个项目。
2. 2. The new policy requires that we go ahead and implement it immediately.
   新政策要求我们立即实施它。
3. 3. He went ahead and bought a new car, despite the high cost.
   他不顾高昂的成本买了一辆新车。