This ability of the human brain to turn fear on its head could be a key to treating phobias(3) and anxiety disorders, according to scientists.
科学家称人脑对恐怖事物的反应将是治疗恐怖症和焦虑症的关键。
2
In theory, this could one day provide a key component of any nanoscale electrical circuit-a way to mechanically turn the current on and off or change its direction.
理论上讲，这种机械切换电流通断或方向的方法，或许有一天会成为任何纳米尺度电路的关键元件。
3
This process is, in turn, based on the public key of the signer.