flossing例句
She was
flossing her teeth at the time.
当时她正在用牙线剔牙。
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.
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.