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
I couldn't get through.
我打不通。
Do you have to feed plants like you feed chickens? Or do they grow up by themselves?
你得要像喂小鸡那样去喂幼苗吗?还是它们自己长大呢?
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