有一种更简单的芯片叫做无线射频识别(RFID)标签，它在被激活之后可以在小范围内发送很短的一段数据，现在，其造价只要4美分一片。
A far simpler kind of chip called a radio-frequency identification (RFID) tag, which sends a tiny quantity of data over a short range when activated, can already be manufactured for 4 cents apiece.
一段延迟后，“爱丽丝”只要通知“鲍勃”其发送的光子应该以模式一读取，而不用告知光子的实际值应该是多少。
After a short time, Alice tells Bob that the photon she sent should have been measured in mode one; she does not tell him what value it should have been.
给朋友或者同事发送一段调试源代码是一件很麻烦的事情。
Sending a piece of source code for troubleshooting to one of your friends or colleagues can be a hassle.
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