Near the tunnel of time and space, my dad dropped me the swimming ring.

快到时空隧道出口时，爸爸向我丢来了游泳圈。

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On the spot it had occupied was a circular space, exposing an iron ring let into a square flag-stone.

在大石所呆的地方出现了一个圆形的空间，中间有一块四方形的石板，上面有一个铁环。

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A ring of LEDs projects infrared light into the space immediately in front of the user so a camera in the device can interpret gestures.

一束由发光二极管发射出的红外线光立刻进入到使用者眼前的空间，这样一个小型摄像机装置，可分析人们的手势轨迹。

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"There's no air in space to compress to ring against your ear, " she told CNN in an interview at the TED conference in Long Beach, California, in March.

CNN: Cosmic music from dying stars

Ashford's ring road was turned into a shared space in November 2008.

BBC: Tunbridge Wells shared space under consideration

Scientists suspected the ring might be present and had the perfect tool in the Spitzer space telescope to confirm it.

BBC: New ring detected around Saturn