There was a strict rule against turning round until one gave the signal, when all turned at once.

有一条严格的规定，在一个人发出信号，所有人一起转身之前，所有的人都不得转身。

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Researchers at the University of Manchester are turning to virtual reality once again, not to have another go 'round at proving whether telepathy is real or not, but to help individuals with amputated limbs recover from so-called "phantom limb pain, " a sensation wherein amputees appear to feel pain in their lost limb.

ENGADGET: Researchers turn to VR to treat phantom limb pain