The keywords of manual advertising are set by yourself and are subjective. The keyword selection is naturally highly relevant and has a certain search popularity, otherwise the clicks will be inaccurate, resulting in a waste of budget.

It also depends on the position of this ad word in the total manual advertising sales of your product.

For example, those keywords that have been clicked but never sold, and the product relevance is not very high, should be denied as soon as possible to keep the entire advertisement in a healthy development state and leave the budget for keywords with good performance. Therefore, the manual advertising fee is higher.