尖酸

It was quite understandable to the body now that why the soul acted so acidly and acrimoniously.

终于能够理解为什么灵魂那样的尖酸刻薄。

With the mordancy and sharpness from the boss, and endless changes on the plan, that means I am still valuable.

被尖酸老板明骂暗打，计划一天改千遍，表示我还当有存在价值。