在该团队的系统中，这些病毒只是作为一种支架，使色素和催化剂的排列起来，并具有合适的间距以触发水的裂解反应。
In the team's system, the viruses simply act as a kind of scaffolding, causing the pigments and catalysts to line up with the right kind of spacing to trigger the water-splitting reaction.
其中6个控制皮肤色素和头发的进化，4个促进免疫系统抗击疾病——从而使一些有机体，比如使在某些地方肆虐的疟疾寄生虫在其他地方绝迹。
Six controlled skin pigment and hair development. Four helped the immune system combat disease-causing organisms, such as malarial parasites, that are a problem in some places, but absent from others.
不过洗牙次数再多也不能去除由于四环素或系统性疾病导致的牙齿深度着色，因为这些色素已进入你的牙齿内部，你需要采取更加积极地措施来对付它们。
No amount of cleaning will remove the severe staining left by tetracycline or systemic disease because these pigments lie inside the tooth; you'll have to take more aggressive measures against these.
应用推荐