还要加上卡车的斜度，它大约斜15度。

来源: 不得不说no 于 2013-01-25 10:51:19 [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.