As summer turns to autumn, the photosynthetic process slows down as the days get both shorter and colder, which in turn leads to less chlorophyll production and the green fading to yellow.
当夏天转变成秋天时，由于白天时间变短而且天气日益变凉，这些叶子的光合作用过程减慢了。相反，这个过程导致了较少的叶绿素，绿色褪成黄色。
As in real life, the traffic lights sometimes turn from green to yellow as you approach them, forcing a quick go-or-stop decision.
跟现实生活一样，你靠近交通信号灯时，它有时会从绿灯变黄灯，让你必须快速决定穿过或停下。
Its big leaves are green in summer and turn yellow in autumn, birds build their house in the tree, ants climb up and down for their own lives.
大在夏天和秋天变黄的树叶是绿色的，鸟儿在树上建造他们的房子，蚂蚁爬上爬下为自我的生活。
应用推荐