To investigate levels of skin exposure, the researchers took radioactively labelled BPA and observed the movement of radioactivity through pig ear skin - a widely used model for human skin.

为了调查皮肤对双酚a的吸收水平，研究者用放射性同位素对双酚a做了标志，观察放射性标志在猪耳朵皮肤内的活动——这是种广泛应用的代替人类皮肤的实验模式。

youdao

Using benzoic acid, acetylsalicylic acid, metronidazole as model drugs and pig ear and pig abdominal skins for experimental material, the in vitro skin permeability of drugs was undertaken.

以苯甲酸、水杨酸、甲硝唑为模型药物，对猪耳和猪腹部皮肤进行体外药物渗透实验，在相同条件下与正常人体皮肤进行了渗透性差别的比较研究。

youdao

When doing math, I feel ten thousand Chen he shouted in my ear: you are a pig?

做数学时感觉一万只陈赫在我耳边喊：你是猪吗？

youdao

Pig's trotter and pig's ear salad is a little too hardcore for me, but D loves it.

BBC: Postcard from Edinburgh

And in the "well-dressed greens and things" section, there are salads that range from one made with fried pig's ear to another composed of avocado, oranges and roasted carrots.

WSJ: Spring's Tasty Cookbooks