可以操作声子并只让它们向一个方向流动的设备正在被建造，这是二极管的热等价物。
Far from it. Devices are being built that can manipulate phonons, allowing them to flow in one direction only, for example - the thermal equivalent of a diode.
有组织的零售商向小城市和内地的迁移，以逃避竞争和猛涨的租金，随着这一进程，他们面临的是消费者品味的巨大落差和极敏感的价格。
As organised retailers move to smaller cities and further inland to escape competition and soaring rents, they face huge variations in taste and extreme price sensitivity.
过了一会，如果有人要在地图上指出你的位置，那么实际上你既在初始点东边也在其极南的位置上。向正东走，你得考虑到地球的形状然后稍偏北行进。
After a while, if someone were to pinpoint your position on a map, you'd actually be both east and far south of your original position.
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