每当听到那首歌，她就会重新体验初恋时的甜蜜感觉。

Whenever she hears that song, she starts ___re-experiencing the sweet feelings of her first love.

在创伤治疗中，患者需要安全地重新体验那些痛苦的回忆。

In trauma therapy, patients need to safely ___re-experience those painful memories.