the monotony of function的用法和樣例：
例句
- Be able to apply the first and second derivative tests to analyze the monotonicity and concavity of a function.
能應用導數判定函數的單調性與凹性並利用漸近線協助繪製函數圖形。 - Variety like a painting or some reflective wood panels added on a plain wall may be used to reduce monotony.
像一副繪畫或一些反光木板可以嵌在素麵的牆上減少其單調性。
