1·Only you: Human lips are different from those of all other animals because they are everted, meaning that they purse outward.
人类的嘴唇是外翻的，这一点和所有其他动物都不一样。
2·METHODS Everted intestinal sacs were used and the concentration of baicalin was determined by HPLC.
方法采用外翻肠囊法制备离体小肠吸收模型，用HPLC测定小肠吸收的黄芩苷。