Gates doesn't travel much on the Beltway's social circuit, instead spending off-hours with his wife and a small cadre of aides.
盖茨与华盛顿周围的社交圈子并没有太多的来往，业余时间倒是与妻子和一些骨干小助手呆在一起。
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
The transistor, when fully saturated, could turn a circuiton or off, and then could be used to control an electrical circuit or store information in an electrical circuit.