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1·You know you should floss, but should is not enough.

你明白应当用牙线清洁牙齿，但“应当”是远远不够的。

2·Hold the floss tightly between your thumbs and forefingers, with about an inch (2.5 cm) of floss between them.

两只手的食指和大拇指分别捏紧牙线的一端， 中间留出一英寸长（2.5厘米） 。

3·Craft Resources also sells yarn and embroidery floss.

“手工之家”也售卖纱线和绣花丝线。《柯林斯英汉双解大词典》

4·You should floss too.

你也该用牙线清洁牙缝。

5·Are Asians more likely to floss their teeth?

亚洲人用牙线清洁牙齿的比例更高吗？

6·Wind the dangling floss around the middle finger of the other hand.

将悬挂着的牙线缠绕在另一只手的中指上。

7·So you might as well floss.

所以你也该用牙线。

8·Use dental floss daily.

每天使用牙线。

9·Brush after each meal and floss daily.

每顿饭后刷牙并每天使用牙线。

10·Will FLOSS make us secure?

FLOSS 会使我们安全吗？

(1)dental flossn. 牙线

(1)silk flossn. 丝棉