When prices fall back through the lowest low price of the last twenty days, the trade is exited using a sell stop order.

当价格击穿最近20天低点，就会触发我们的卖出止损指令，退出交易。

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In order to place a sell stop order you can use our sell stop-limit order function by setting the limit price to a relatively low price.

如要发出止蚀沽盘指令，阁下可选用限价止蚀沽盘并将限价设定为一个较低的价格。

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Once the stop price is reached, the stop-limit order becomes a limit order to buy or to sell at a specified price.

一旦停止价格达成协议，限价订单成为限制为了购买或出售在指定的价格。

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In order to avoid the possibility of chalking up uncontrolled losses, you can place a stop-sell order at a certain price so that your position will automatically be closed out when that price is reached.

FORBES: How To Place Orders With A Forex Broker

Place a stop-sell order a few pips below the support level so that when the price reaches your specified price or goes below it, your short position will be opened.

FORBES: How To Place Orders With A Forex Broker

For a long position that has become very profitable, you may move your stop-sell order from the loss to the profit zone to safeguard against the chance of realizing a loss in case your trade does not reach your specified profit objective, and the market turns against your trade.

FORBES: How To Place Orders With A Forex Broker