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

众所周知，一篮子货币很难发挥作用，如果其中包含可兑换货币。

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

汇管制对一国货币持有者将其兑换成他国货币限制，因此表现为货币可兑换。