中文：

搏差持股线是指投资者在股票交易中，利用搏差交易方法所获得的收益来弥补持股的成本，从而降低持股的风险。

搏差交易是一种利用股票价格波动赚取差价收益的交易方式。在搏差交易中，投资者先卖后买，通过卖出合约来获取一定的保证金，并在价格下跌时买入合约以归还保证金。通过这种方式，投资者可以在价格波动中赚取差价收益。

然而，搏差交易也存在一定的风险。如果价格波动不大或者出现不利的情况，投资者可能会损失一定的资金。为了降低这种风险，投资者可以采用搏差持股线的策略。

具体来说，搏差持股线是指投资者在持有股票的同时，利用搏差交易赚取的收益来弥补持股的成本。通过这种方式，投资者可以在一定程度上降低持股的风险，并获得更多的收益。

需要注意的是，搏差持股线并不是一种稳赚不赔的策略。投资者在进行搏差交易时仍然需要承担一定的风险。因此，在进行搏差持股线交易时，投资者需要具备较高的投资技巧和经验，并且需要注意风险控制和投资策略。

英文：

The term "Bocha holding line" refers to an investment strategy in which an investor uses the profits obtained from Bocha trading to offset the cost of holding shares, thereby reducing the risk of holding shares.

Bocha trading is a trading method that profits from the price fluctuations of stocks by selling first and buying later. By selling contracts, investors obtain a certain amount of margin, and when the price falls, they buy the contract to return the margin. Through this method, investors can profit from the price difference.

However, Bocha trading also has certain risks. If the price fluctuations are not significant or unfavorable conditions arise, investors may lose some funds. To reduce this risk, investors can adopt the strategy of Bocha holding lines.

Specifically, Bocha holding lines refer to investors who use the profits obtained from Bocha trading to offset the cost of holding shares. Through this method, investors can reduce the risk of holding shares to a certain extent and obtain more returns.

It should be noted that Bocha holding lines are not a guaranteed profit strategy. Investors still need to bear certain risks when engaging in Bocha trading. Therefore, when trading with Bocha holding lines, investors need to have high investment skills and experience, and need to focus on risk control and investment strategies.