[<< wikibooks] English-Hanzi/Abrasives account for at least 50% of ordinary toothpaste
Abrasives account for at least 50% of ordinary toothpaste. These insoluble particles are designed to help remove plaque from the teeth.
磨料至少占普通牙膏的50%。 这些不溶性颗粒旨在帮助去除牙齿上的牙菌斑。