Pcdd
abbr. patient clinical data directory 患者临床数据名录; polychlorinated dibenzo-p-dioxin 多氯二苯-p-二噁英
🗣️ 情景例句
Unfortunately, no.
很遗憾，没有。
He hasn't done any worthwhile work in five years.
这五年来他没做过一件正经事。
Whether they will ever become future Olympic champions, only time will tell.
他们将来是否能成为奥林匹克的冠军，这只能由时间来作出回答。