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- Why can the tooth blacken? 为什么牙会变黑吗?
- Why can the Echo Wall make echoes so clearly? 为什么回音壁回声那么清晰?
- Why can the waterfall method be difficult to use? 为什么“瀑布方法”应用比较困难?
- Why can the person remove gooseflesh occasionally? 为什么人有时候会起鸡皮疙瘩呢？
- Why can the person have suicidal idea? 为什么人会有自杀的念头呢？
- Why can the sun suntan the skin? 为什么太阳会把皮肤晒黑?
- Why can the multipartite mediation work? 为什么会产生大调解？
- Why can the person always have so much sentiment? 为什么人总是会有那么多的情绪？
- Why can the person feel in summer be perturbed? 为什么人在夏天会觉得心烦?
- Eat lollipop much can the tooth ache? 吃棒棒糖吃多了牙会疼吗？
- Dot why can the head have lymph node? 小孩子为什么头部会有淋巴结?
- Why can the person fear in darkness, scared? 人在黑暗中为什么会害怕，恐惧？
- Can the smoke glair on the tooth go to a hospital be being cleaned? 牙齿上的烟釉可以去医院清洗掉吗？
- Why Can the Gradual Reform in China AchieveSuccess? 中国的渐进式改革为什么能获得成功?
- Why can the soap produce a foam? [肥皂为什麽能产生泡沫?
- Why can the person have aching feeling? 为什么人会有心痛的感觉呢？
- Teacher asks Anne: “Why can the creek flow”? 老师问安妮：“小河为什么会流啊”？
- Why can the person have so much vexed Lie? 为什么人会有那么多的烦恼咧？
- Why can the person have aching sensory Lie? 为什么人会有心痛的感觉咧？
- Why can the skin remove gooseflesh when is the body very cold? 身体很冷的时候皮肤为什么会起鸡皮疙瘩？
