即使稳定了绳子实际上也是在慢慢变长，只是在短时间内应该可以忽略不计罢了。

来源: Soltek 于 2019-09-29 09:08:12 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.