inconvertible

Baskets are notoriously hard to make work, especially if they include an inconvertible currency.

众所周知，一篮子货币难发挥作用，特别是如果其中包含可兑换的货币的话。

Exchange control restricts the right of holders of a currency to exchange it for other currencies.It thereby renders a currency inconvertible.

外汇管制是对一国货币的持有者将其兑换成他国货币的限制，因此货币的可兑换。