1. This leads to an insufficient supply of nutrients to the brain causing brain degeneration. 这会造成供应给头脑的营养素不足而导致头脑退化。
2. What speeds up the degeneration? Sun exposure. "The absolute worst thing you can do is sit in the sun, " he says. 什么加速了这样的老化？太阳下曝晒。“人们做的绝对最糟糕的事情就是去坐在太阳底下”他称。
3. The degeneration of natural grassland has caused a series of problems of ecological economy in North China pasture. 我国北方牧区的天然草地发生了严重的退化，引发了一系列生态经济问题。
英英解释
n.
1. the process of declining from a higher to a lower level of effective power or vitality or essential
2. the state of being degenerate in mental or moral qualities
3. passing from a more complex to a simpler biological form
