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- I do not know why acids eat in metals. 我不知道酸腐蚀金属的原因。
- I do not know why acid corrodes the metal. 我不知道酸为什么腐蚀金属。
- I do not know why he is always jumping on me . 我不知道为什么他总是责骂我。
- I do not know why they eat this kind of food. 我不知道他们为什么吃这种食物。
- I do not know why his temper has soured. 我不知道为什么他的脾气变坏了。
- I do not know why she is hostile to me. 我不知道她为什么对我抱有敌意。
- I really do not know why I am always so foolish. 我真的不知道我为什么总是这样傻？
- I do not know why I let you talk me into going. 我不明白为什么会让你说动我去。
- But he says he still does not know why people yawn. 但是他说他还是不知道人们为什么打哈欠。
- I do not know why they eat such kind of food. 我不知道他们为什么吃这种食物。
- Not know why insomnia, lethargy may be a life. 不知道为什么会失眠,也许是生活困倦了。
- I do not know why she is staring at me. 不知道为什麽她一直在瞪我。
- They do not know why matter has mass. 他们不知道为什么物质会具有质量。
- I do not know why, guess may be irrigated more. 我不知道是什么原因，猜想可能是水浇多了。
- Do not know why so early to drive? 不知道为什么这么早就开车去了？
- I do not know why acid corrodes the metal . 我不知道酸为什么腐蚀金属。
- We do not know why the translator made that mistake. 我们不知道那名翻译员为何会犯下这个错误。
- I really do not know why they shall be shouting like this. 我真不知道他们干吗要这样大喊大叫。
- Ah! I do not know why they do not subtitle these movies. 唉！我不知道这些电影为什么不打字幕。
- I do not know why Alan is often making a jackass of himself. 我真不明白为什么阿兰总是做一些蠢事。
