美國有很多物理學博士都投入到了偉大的華爾街事業中去了，所有時態都適用。

來源: longsky 於 2017-03-21 10:15:58 [舊帖] [給我悄悄話] 本文已被閱讀：次

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