当资金涌入时，中央银行通过买入外汇来遏制货币升值。

When capital pours in, central Banks buy foreign exchange to stem their rise.

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银行卖出外汇的汇率（卖出价）高于买入外汇的汇率（买入价）。

The rates at which the banks sell foreign exchange (selling rates) are higher than the rates at which they buy (buying rates).

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更为糟糕的是，订单是以美元下单的，但为了负担当地的生产成本，造船厂买入外汇期货合约，将其责任转化为韩元。

Worse still, orders are booked in dollars, but to cover local production costs shipyards buy forward currency contracts, transforming their obligations into won.

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