These bonds present a great opportunity to get in on the ground floor of this venture.这些债券为从头参与这个风险投资提供了绝好机会。He was able to get in on the ground floor of the computer industry.他能够在计算机产业起步时参与其中。Can someone tell me how you get in on the ground floor of a deal like that?有谁能告诉我你怎么才能一开就参与那样的交易？