The yuan is still a long way from being a free-floating currency. It is further away still from being a global one to rival the dollar.It is not a straightforward business to buy and sell yuan.
Traders joke that it is less liquid than the shares of Alibaba, a giant Chinese e-commerce firm, which is listed in New York.
Yet despite the constraints, the waxing and waning of the yuan’s value has had a growing influence on the foreign-exchange market and on asset prices more generally.
这是《经济学人》8月刊的一篇文章'The meaning of seven'第5段，共有3句。
1、
{'rival':'与...相匹配，比得上'}
{'straightforward':'adj.简单的，容易的'}
这句话顺着翻译就好：人民币距离成为完全浮动汇率货币还有很长的路要走，从一个国际货币之一到与美元分庭抗礼依然有很长一段路要走，对于交易人民币业务来说并不是容易的。
2、
{'commerce':'商业、贸易'}
这句话核心就是前半句，'that'介绍joke的内容，整句话试着翻译：交易者开玩笑道：人民币的流通性还不如阿里巴巴公司的股票，一家备案在纽约的中国的电子商业巨头公司。
3、
{'constraints':'n.约束，限制'}
waxing and waning ：消长变化，盈亏
直接翻译：尽管（人民币）受到限制，但是人民币价值的消长变化（涨跌）在国外外汇市场以及普遍的资产价格中的影响力在与日剧增。
总结：
词汇部分
{'rival':'与...相匹配，比得上'}
{'straightforward':'adj.简单的，容易的'}
{'commerce':'商业、贸易'}
{'constraints':'n.约束，限制'}
waxing and waning ：消长变化，盈亏
