您要查找的是不是：
- regressive derivative 右导数
- Many prisoners, on being freed, regress to a life of crime. 许多囚犯，一旦获释，仍去犯罪。
- An organic derivative, such as coal or petroleum. 有机衍生物一种有机衍生物，如煤或石油
- An acyl derivative of hydrazine. 酰肼一种由肼衍生而来的酰
- The policy has been condemned as a regressive step. 这项政策被认为是一种倒退而受到谴责。
- A mark used as a superscript to indicate the first derivative of a variable. 撇号置于右上角的符号，用以标明变量的第一个导数
- Many of the symptoms will regress or disappear. 许多症状将减轻或消失。
- The attempt leads to an infinite regress. 这种作法会导致无穷倒退。
- The derivative of the step is the impulse. 阶梯的导数就是脉冲。
- A derivative is defined by a limiting process. 导数是通过一个极限过程加以规定的。
- They spoke a derivative of the Malay language. 他们说一种从马来语派生的语言。
- A highly derivative prose style. 毫无创意的散文风格
- To regress after partial recovery from illness. 复发:疾病部分康复以后再次退化。
- Regress to "natural person "state. 回归“自然人”状态。
- A derivative word;a derivative process. 衍生词；推导过程
- Many men, when very angry, regress to their childhood and show their bad temper by shouting and stamping their feet. 很多人，盛怒之下又退回到孩提时代，边大喊大叫边跺脚地发脾气。
- Not standing alone;derivative or dependent. 从属的，不独立的不独立存在的；衍生性的或依赖性的
- At the moment of victory, we regress. 在胜利的时刻，我们后退了。
- An amino - acid derivative of galactose. 半乳糖胺半乳糖的一种氨基酸衍生物
- Derivative that is thrown if the wait times out. 派生类,它在等待超时后即被抛出。
