Dental floss: a waxed or unwaxed thread used to remove food particles and plaque from the teeth.

洁齿线：一种上蜡或未上蜡的用于去除牙齿上的食物残碴和牙斑的线。

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Dental floss: a waxed or unwaxed thread used to remove food particles and plaque from the teeth.

洁齿线：一种上蜡或未上蜡的用于去除牙齿上的食物残碴和牙斑的线。

youdao