Thus our bodies continuously exchange old substance for new, just like a spring which more or less maintains its form and movement, but in which the water molecules are always different.
As is announced in the papers, our country has launched a largescale movement against smuggling and fraudulent activities in foreign currency exchange deals.
据报道，我国开展了一场大规模的打击外汇交易相关的走私和欺诈活动的运动。
3
Controls on exchange rates and the international movement of capital should be re-established.