sheathe|sheathed|sheathes

她强忍着泪水，尽量保持冷静。

She tried to ___sheathe her tears and stay composed.

猎人把刀插回刀鞘，继续前行。

The hunter ___sheathed his knife and continued walking.

猎人清理完刀后把它插回刀鞘。

The hunter ___sheathes his knife after cleaning it.