To brush your teeth, put a pea-sized drop of toothpaste on your toothbrush, then cover all the surfaces of all the teeth in your mouth, using the Bass technique.
开始刷牙，把豆粒大小的牙膏置于牙刷上，然后用贝氏(Bass)法涵盖你口腔中所有牙齿的所有表面。
To brush your teeth, put a pea-sized drop of toothpaste on your toothbrush, then cover all the surfaces of all the teeth in your mouth, using the Bass technique.
开始刷牙，把豆粒大小的牙膏置于牙刷上，然后用贝氏(Bass)法涵盖你口腔中所有牙齿的所有表面。
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