Before trading was computerised, erroneous orders were known as "out-trades" which could be cancelled before proceeding.

在交易电脑化之前，错误的交易指令被称为“错误交易”，在进行之前就得以取消。

youdao

There's a big difference between predicting that something will happen in the market (and thinking about all the money you could have made) and the reality of actually getting into and out of trades.

预测市场要发生什么事(以为自己可以赚到所有的钱)和你进场交易把钱赚到手之间有很大的不同。

youdao

When we trade without well-defined plans and with an unlimited set of variables, it's very easy to take credit for the trades that turn out to our liking (because there was "some" method present).

市场有无限的变数，当我们没有做好计划就交易时，我们很轻松地以为这笔交易会赚钱(因为有一些现成的方法)。

youdao

Computer trading--particularly programs using algorithms that parse out trades anonymously--has exploded in popularity and already has resulted in job cuts on trading desks across Wall Street.

FORBES: Magazine Article

The firms offering this technology can't be "fool-proofing" the concept to protect the novice FX investor from dangerous practices, such as quick in-out trades, poor risk management and too much leverage, Paz says.

WSJ: Currency Traders Follow the Leader | WSJ.Money Summer 2013

One was of achieving this was via "wash trades" - buying and selling from the trader simultaneously, so the trades cancel each other out, but the difference in price generates a profit for the broker.

BBC: UBS sign