He blackens his opponents by giving them names .

他用起各种外号来诽谤他的对手。

The look that medicinal herb dust irritability leads to blackens .

草药粉尘过敏导致的脸色变黑。

A small , slightly brown plume rises from the vent , and ash blackens the ground to the west and south .

少的，微褐色的熔岩从火山口流出，火山灰云遮蔽了西部及南部的地面。