Some players complain that the difference is that serves have to be learned, and long pips just can be purchased.

有一些人说，发球需要时间学习，而长胶却可以直接购买。

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In this case, you can place a limit-buy order a few pips above that support level so that your long order will be filled when the market moves down to that specified price or lower.

FORBES: How To Place Orders With A Forex Broker