dental floss
US /ˈden.təl flɑːs/
UK /ˈden.təl flɑːs/

1.
牙线
a soft thread for cleaning between the teeth
:
•
Remember to use dental floss daily for better oral hygiene.
记住每天使用牙线以获得更好的口腔卫生。
•
She always carries a small pack of dental floss in her purse.
她的钱包里总是装着一小包牙线。