1. 许多人认为海外留学是移民的跳板。
Many believe that studying abroad is a springboard for emigration.
Studying abroad is regarded as a springboard for immigration.
A degree from a foreign institution is widely considered a springboard for immigration.
(用具体的事物来称述抽象事物)
2. 许多人认为实习是将来就业的跳板
An internship is regarded as a springboard for an actual job.
A certificate of internship is widely considered a springboard for an actual job.