Definition: a substance that you use to clean your teeth Level: B1
在牙刷上放少量牙膏。
Put a small amount of ___tooth ___paste on the brush.
如果我必须刷牙，我用牙刷和一点牙膏。
If I have to brush my teeth, I use my toothbrush with a little ___tooth ___paste.
别忘了在商店买牙膏。
Don't forget to buy ___tooth ___paste at the store.
