n.丝线;丝棉;牙线
v.用牙线清洁牙齿
This kind of floss is used for embroidery. 这种丝线用来刺绣。
I like to use dental floss rather than toothpick. 我喜欢使用牙线而非牙签。
Make sure that you floss your teeth every night. 记得每天晚上都要用牙线来清洁牙齿。