再问:为什么肥皂水可以弄出泡沫。为什么泡沫上会出现颜色。泡沫到了水里是溶掉吗?宝宝爱把泡沫放入水中看,说要把泡沫溶在水里,这说发不对吧。可我又不懂该怎么说。
再问:
所有跟帖:
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if you take every question from cc seriously, you'll
-洋葱头儿妈妈-
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08/05/2009 postreply
15:20:07
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hoho, she didn't ask me those questions. i am the one who is cur
-felicia1-
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08/05/2009 postreply
15:22:35