丝棉( floss的现在分词 );乱丝;绣花丝线;绒毛;

Recent studies make a direct connection between longevity and teeth flossing.
最近的研究表明:长寿跟用牙线洁齿直接相关.
来源:互联网摘选The gums are swollen, soft, and may bleed, particularly during brushing or flossing.
牙龈肿胀, 柔软, 可能出血, 尤其在刷牙或用牙线清洁的时候.
来源:互联网摘选In addition, flossing regularly and using a good mouthwash is also recommended.
此外, 还推荐你定期使用牙线和挑选一把好牙刷.
来源:互联网摘选I mean, what if a condom breaks? Or he's flossing his teeth and his gums bleed?
我是说, 如果避孕套破了,或是他牙齿松动了,牙龈流血了 怎么办 ?
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