求翻译：币的国际化更有借鉴意义。日元的国际化起步于上世纪 70 年代初，经历了一个由被动到主动转变过程。 布雷顿森林体系崩溃以后，日元对美元的汇率开始浮动，为了应对日元对美元升值所造成的压力，日本鼓励在与日本的贸易中使用日元记价， 于是日元开始充当国际货币的职能。但日本担心日元国际化会使资金大量外流，所以对日元国际化实际上持消极态度。是什么意思？

The internationalization of the currency more reference. Internationalization of the yen started in the early 1970s, has gone through a process of transformation from passive to active. After the collapse of the Bretton Woods system, the Japanese yen against the U.S. dollar began to float, in respon