floss

1. N-UNCOUNT You can use floss to refer to fine soft threads of some kind. 細軟線→see also dental floss

Craft Resources also sells yarn and embroidery floss. “手工之家”也售賣紗線和綉花絲線。

2. V-T/V-I When you floss, you use a special kind of strong string to clean between your teeth and gums. 用牙線剔牙

Brush your teeth after each meal and floss daily. 餐後要刷牙，而且每天要使用牙線清潔牙縫。

She was flossing her teeth at the time. 儅時她正在用牙線剔牙。