晚上,我津津有味地看着一本杂志,一个题目为“茶水变墨水”的生活小常识引起了我的注意。我有些半信半疑:茶水怎么可能变成墨水呢?我决定自己做一个实验来证实。我照着书上说的准备材料。我拿来一个杯子,里面倒上热乎乎的茶,又找来一些锈铁钉。 In the evening, I looked at a magazine with relish, and a little bit of my life-common sense, titled “Tea Changed Ink” caught my attention. I am somewhat skeptical: how can tea turn into ink? I decided to do an experiment by myself. I prepared materials according to the book said. I brought in a cup, which poured hot tea, but also to find some rust nails.