And I knew that frogs -- little frogs -- had aspirations of space travel, just like people. And I --  I was looking for a -- a propulsion system that would like, make a rocket, like, maybe about four feet high go up a couple of miles.
而且我想到了用青蛙 — 小青蛙 — 也应该有太空历险的远大志向， 像我一样。所以我 —  我就开始找一个 — 推动器 一个我能用来做火箭的， 差不多四英尺高，能冲几英里高的火箭。