当日之内
Within the day
以上为机器翻译结果，长、整句建议使用 人工翻译 。
这样做是为了当天之内多次交易赚点小利润。当日交易者每天可能买入卖出股票数百次。
The idea is to make a small profit many times during the day. Day traders may buy and sell stocks hundreds of times each day.
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