下次你出去慢跑的时候，为什么不带个垃圾袋，沿途收集一些垃圾呢？
Next time you go out jogging, why not carry a rubbish bag and collect some litter along the way?
来自于它们色袋的颜色被环境反射的颜色补充了，这就是为什么它们能够如此精确地模仿颜色。
The colors from the color sacks are supplemented with colors that are reflected from the environment, and that's how they are able to mimic colors with such precision.
这就解释了我们对塑料垃圾袋和带轮行李箱等看似简单的发明的反应：“为什么以前没有人想到这一点？”
This accounts for our reaction to seemingly simple innovations like plastic garbage bags and suitcases on wheels that make life more convenient:"How come nobody thought of that before?"
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