她的牙龈在出血。

Her ___gums are bleeding.

牙医建议每天刷牙时也要轻轻按摩牙龈。

The dentist suggests gently massaging your ___gums while brushing daily.

他用胶水粘好了破损的纸张。

He fixed the torn paper with some ___glue.

她总是在口袋里放几块口香糖。

She always keeps some ___gum in her pocket.