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家里经常用煤气烧开水,但是每次烧开水的时候,我都得守在一旁等水烧开,真麻烦!所以我想发明一种烧开水的自动警示器。
I often use gas to boil water at home, but every time I boil water, I have to wait for the water to boil, which is really troublesome! So I wanted to invent a kind of automatic warning device for boiling water.