And we use natural, essential oils.

我们使用天然的精油。

Washing less often can increase the natural oils, giving a rich thick look.

不要那么经常洗头可以增加自然油脂，让头发看上去更加浓密。

Natural oil spills, when the substance simply seeps out of the ocean floor, are possible.

有可能是原油从大洋底部自然渗出。

It's most likely to happen on parts of the body that produce the most natural oils.

它最有可能产生最多自然的体油的身体部位出现。

STEP 1 Wash your hair every second or third day to avoid stripping away the natural oils.

每隔一天或两天洗一次头，避免洗掉头发上天然的油脂。

Near the Caspian Sea, Marco saw natural oil wells for the first time.

在里海附近， 马可第一次看到了天然油井。

When you put it in the mortar and pestle, you're releasing all of the natural oils, which just activates the spices more.

当你把它放在研钵和研杵中时，你释放了所有的天然油，这只会更多地激活香料。

You have to take care of your skin at whatever age you are, do not strip the natural oil that's on your skin.

无论年龄大小，您都必须照顾好自己的皮肤，不要剥掉皮肤上的天然油脂。

But, as Laura Waters, who's a Professor of Pharmaceutical Analysis in the School of Applied Sciences at Huddersfield University, points out, 'some surfactants work too well' and take the natural oils out of the hair, as well.

但是，正如哈德斯菲尔德大学应用科学学院药物分析教授劳拉·沃特斯所指出的那样，“一些表面活性剂效果太好”，甚至会去除头发中的天然油脂。