这种智能芯片比火柴头还稍小，而现今最好的植入物却仅仅是如火柴盒一样大小，这种芯片通过阻断传向大脑的疼痛信号来发挥作用。

Slightly smaller than the head of a match - the best implants today are only as small as a matchbox - the chip works by blocking pain signals on their way to the brain.

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揪起一小块皮肤，把一个火柴盒粘到你的手上！

Pinch up a fold of skin, make a matchbox stick on your hand!

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今天这种发电器造得比火柴盒大不了多少。

Today's generators are not much bigger than a matchbox.

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