牙線 angolul

dental floss [dental flosses]▼(cord of thin filaments used to clean the areas between the teeth)
noun
[UK: ˈden.tl̩ flɒs] [US: ˈden.tl̩ ˈflɑːs]

floss▼(a thread used to clean the gaps between the teeth)
noun
[UK: flɒs] [US: ˈflɑːs]