1、
2、
By the time I returned with a bowl of popcorn, my son had finished his ciphering.
我拿着一碗爆米花回到房间时, 儿子已经算完了.
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3、
Yes, OK, but... But it's all computer generated electronic codes, electronic ciphering methods.
是，没错…不过不过都是由电脑生成，例如电子编码，电子加密程序。
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