Pcdd
abbr. patient clinical data directory 患者臨床數據名錄; polychlorinated dibenzo-p-dioxin 多氯二苯-p-二噁英
??? 情景例句
That's fantastic!
真了不起！
My feeling is that you ought to stay home tonight.
我感覺你應該今晚呆在家。
Most countries use these satellites to send and receive messages.
大多數國家利用這些衛星發送和接收消息。