And if you're wondering, creatine is an amino acid compound and NOT a steroid.

你可能会想知道，肌酸一种氨基酸化合物，而不醇。

So this is where we're seeing a lot of shuttling of carbohydrate and amino acids to go to build that endometrial lining.

所以在这一阶段，我们会看到大量碳水化合物和氨基酸被运输去构建膜。

In one of the first examples of drug design, rather than accidental discovery, Farber created two synthetic compounds, aminopterin and amethopterin, later called methotrexate, both analogues of folic acid.

在药物设计早期典范中，而非偶然发现， 法伯创造了两种合成化合物：氨基蝶呤和氨甲蝶呤，后者后来被称为甲氨蝶呤，它们都叶酸似物。