I don't even know. I think acid and base chemical reactions.
我还不知道，我想是学习酸和盐基化学反应吧。
I do not know why acid corrodes the metal.
我不知道酸为什么腐蚀金属。
How would I know what amino acid that is?
我如何才能知道这个氨基酸是甚么呢？
I didn't know about acid rain frankly, at that time.
坦白地说，那时我还不知道有酸雨。
Most of you who understand the different kinds of fats probably know that linoleic acid is a healthy fat, found in safflower oil which for cooking, is all I use.
你们中大部分知道不同种类脂肪的人，可能知道亚油酸是一种健康脂肪，它是来自红花籽油，能用来烧菜。
Most of you who understand the different kinds of fats probably know that linoleic acid is a healthy fat, found in safflower oil which for cooking, is all I use.
你们中大部分知道不同种类脂肪的人，可能知道亚油酸是一种健康脂肪，它是来自红花籽油，能用来烧菜。
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