limit order

She set a limit order to buy ETH at $2,800, lower than the current market price.她设置了一笔以2800美元购买ETH的限价单，低于当前的市场价格。

Limit orders ensure you get the price you want but may not fill if the market never reaches your target level.限价单确保你能获得想要的价格，但如果市场从未触及你的目标水平，则可能无法成交。