抗酸剂是碱性的，它们通过中和胃容物中的酸来缓解疼痛。
Antacids are alkaline and they relieve pain by neutralizing acid in the contents of the stomach.
这色拉的味道太酸了。
他的胃可能会因为所有这些酸而穿孔。
这苹果尝起来跟我记忆中的完全一样–味道十足，酸中带甜。
The apple tasted just as I remembered – sharp, sour, yet sweet.
炖过的苹果即使加了蜂蜜也还是酸的。
随着时间的推移,蛋壳中的蛋白质分解成其构成成分氨基酸。
Over time, the protein in the eggshell breaks down into its constituent amino acids.
用盐腌的酸橙是用来给鸡肉调味的一种北非特产。
Lime preserved in salt is a North African speciality which is used to flavour chicken dishes.
另一种树种的有机凋落物可能不会添加这么多酸，但会添加较多的其他物质。
The organic litter of another tree species might add less acid but more of something else.
有些樱桃是甜的，有些樱桃是酸的。
有趣的是，当所有的柠檬酸冲击他们的味蕾时，人们做出的各种表情。
The fun is all about expression people make as all that citric acid hits their taste buds.
我们都知道，柠檬是酸的。
这牛奶闻起来是酸的。
我喜欢柠檬因为它们是酸的。
柠檬是一种酸的水果。
这些看起来不错，但我敢肯定，它们吃起来是酸的。
它们把糖转化成酸，酸会腐蚀较硬的牙齿外层。
They change sugar into acids, which break down the tooth's harder outer covering.
氨基酸是蛋白质的组成部分。
他们尤其想在土壤中找到的是氨基酸。
What they'll look for specifically in the soil is amino acids.
这很重要，因为酶的氨基酸序列是由基因决定的。
This is significant, because the amino acid sequence of an enzyme is determined by genes.
单宁酸是防御机制的一部分，对长寿至关重要。
The tannins are part of the defense mechanism that is essential to longevity.
其他记忆食物含有大量的omega-3脂肪酸，包括亚麻籽、核桃、鲑鱼、大豆和冬季瓜。
Other memory foods that contain high amounts of omega-3 fatty acids include flaxseed, walnut, salmon, soybean and winter squash.
研究这种药草的农学家发现，它会产生大量的组氨酸，这种氨基酸在试管溶液中会使这些金属具有化学惰性。
Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert.
然后，含有这些信使核糖核苷酸的脑细胞就可以被分离开来，研究者可对其信使核糖核苷酸进行解码，以确定它们的蛋白质产物究竟是什么，并确定这些蛋白质产物在何种程度上类似于真正的肽激素。
The brain cells containing these mRNA's can then be isolated and their mRNA's decoded to determine just what their protein products are and how closely the products resemble the true peptide hormones.
它们进化到能够识别出几种基本的味道，以便快速辨别毒素，而毒素在自然界中通常是很苦或很酸的。
They evolved to recognise only a few basic tastes in order to quickly identify toxins, which in nature are often quite bitter or acidly sour.
组成地球上蛋白质的那20个（氨基酸）都是左旋氨基酸。
The twenty that make up the proteins on Earth are all left-handed.
享用一次含有柑橘类的浪漫沙拉，如粉红葡萄柚或橘子，或使用柠檬和酸橙制成的调味品。
Enjoy a romantic salad that incorporates citrus, like pink grapefruit or mandarin oranges, or use a dressing made with lemon and lime.
如果发现了氨基酸，并且它们普遍表现出同一种偏向性——要么像地球上的氨基酸一样是左旋的，要么是右旋的，那将会格外有趣。
If amino acids are found, it would be especially interesting if they show a prevalence of one type of handedness, either left, like amino acids on Earth, or right.
它有甜和酸的两种口味。
M.O.A 这种有机分析器令人印象深刻的原因之一是：它不仅检验了氨基酸是否存在，而且还测试出了氨基酸的旋向性。
One reason the M.O.A., the organic analyzer is so impressive is that it tests not just for the presence of amino acids but also for the handedness of amino acids.
在宇宙中其他的一些物理过程，那些不牵涉到生物体的过程，是可以创造出氨基酸的。
Other physical processes in space, processes that don't involve living organisms, can create amino acids.
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