What was the promise? And, how was the result?

来源: 于 2014-11-03 13:19:02 [旧帖] [给我悄悄话] 本文已被阅读：次
bi-elliptic: “Russian tried skip reentry, and it didn't really help them. It didn't live up to its promise. “

Question：What was the promise? And, how was the result?