是啊。如果他非常明确看多，留着C195更划算。之所以要roll up，是因为下跌时能少损失

来源: opst 于 2024-07-02 12:32:05 [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.