Many emerging economies have intervened in currency markets on a huge scale, principally in order to keep export competitiveness upandcurrent account deficits down.
许多新兴经济体在外汇市场中进行大规模干预，主要为了维持较高的出口竞争力及压低经常账户赤字。
2
Two small pouches, placed in the bottom of a shoe, are filled with the fluid and generate a current whenever they are compressed by the foot’s upanddown motion.
当他们将两个装有该流体的小袋子置于鞋内时，它们就会因人脚抬升和下落的动作而受到挤压，从而产生电流。
3
Forcing an electric current across that junction causes the metal on one side to heat up, and the metal on the other side to cool down.