a board that can bend, helping people to jump higher when jumping or diving into a swimming pool or when doing gymnastics
(GOOD START)
（提供动力的）跳板；（有助于开展某事的）出发点，开端
something that provides you either with the opportunity to follow a particular plan of action, or the encouragement that is needed to make it successful
The firm's director is confident that the new project will act as a springboard for/to further contracts.公司主管确信，新项目将会是一个开端，随后会有更多的合同。