蜂蜜中的氨基酸是酸性的吗？
蜂蜜中的氨基酸是酸性的吗？
There are many amino acids that the body cannot synthesize itself.
濒临灭绝的雨蛙是一种罕见的“酸蛙”——如此命名，是因为它们在自然酸性的水域找到了避难所，其中包括弗雷泽的淡水湖。
The endangered Cooloola sedge frog (Litoria cooloolensis) is part of the rare group of acid frogs—so named because they find refuge in naturally acidic waters, including Fraser's freshwater lakes.
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