aggravate|aggravated|aggravates

不停地挠伤口只会让情况变得更糟。

Scratching the wound will only ___aggravate it.

他的抱怨只会让问题变得更严重。

His complaints only ___aggravated the problem.

在伤口上挠只会让情况更糟。

Scratching the wound only ___aggravates the condition.