Despite all the layers, the suit is flexible, allowing free movement so we can work.

尽管有所有层，宇航服是有灵活性的，允许自由运动，所以我们能够工作。

These surfactants have their hydrophilic head and their hydrophobic tails, and so they form these micelles around the dirt, which is what grabs onto dirt and oil, and helps it to remove it from the hair and the scalp.

表面活性剂有亲水的头部疏水的尾部，所以它们在污垢周围形成胶束，胶束可以吸附污垢油脂，并帮助它们从头发头皮上清除。

Free radicals are highly reactive chemical entities that can damage cells.

自由基是能破坏细的、有高反应活性的化学实体。

Superacids get so strong because a lot of them are made by mixing an existing strong acid with another acid that involves the super-reactive element fluorine.

一种强酸另一种含有有超强反应活性的氟元素的酸混合造就了大部分超强酸。

Additionally, parathyroid hormone can boost 1-alpha-hydroxylase activity, which forms more active vitamin D, increasing gut absorption of calcium.

此外，甲状旁腺激素可以增加1-α-羟化酶的活性，从而形成更多有活性的维生素D，增加肠道对钙的吸收。

Both Ozempic for type 2 diabetes and the obesity treatment Wegovy have the same active ingredient, semaglutide.

疗2型糖尿病的索马鲁疗肥胖症的威高维都有相同的活性成分——塞马格鲁。

Yeah absolutely. But don't feel you have to follow it slavishly, it's meant to be flexible.

是的，完全同意。但你也不用完全死板地遵循它，个计划是有一定灵活性的。

However, this nimbleness comes at a cost.

然而，种灵活性是有代价的。

This is fundamentally a study about the distinction between biologic activity and meaningful clinical benefit.

从根本上是一篇关于生物活性与有意义的临床获益之间区别的研究。

And if you want to change or switch whatever endeavor you're going down, you will always have the flexibility to.

而且如果你想改变或切换你正在从事的任何事业，你总是有个灵活性的。

Places where there's some flexibility, you can move workouts back a day or forward a day.

在有灵活性的地方，你可以将锻炼时间提前或推后一天。

Now, all enzymes have an active site. That's the place in the enzyme where the reaction happens.

所有的酵素有特定的活性部位，也就是酵素反应发生的地方。