English Original
I am a common object used by everyone, typically about 8 inches long. One end has soft bristles, and the other has a small hole.
I rest most of the day but am always ready for action. When in use, I move back and forth within a warm, moist cavity.
After my task is complete, a white, foamy residue remains, and I return to my resting place. I'm usually cleaned afterward.
What am I?
Surprise! I am your very own... toothbrush! What were you thinking?
中文翻译
我是一个人人常用的物品，通常长约8英寸。一端有柔软的刷毛，另一端有一个小孔。
我大部分时间都在休息，但随时准备行动。使用时，我在一个温暖湿润的腔体内来回移动。
任务完成后，会留下白色的泡沫残留物，然后我便回到原位。之后通常会被清洗。
猜猜我是谁？
没想到吧！我就是你的……牙刷！你刚才在想什么呢？