医生重新激活了他的心脏起搏器以恢复正常功能。

The doctor ___reactivated his pacemaker to restore normal function.

他重新激活了被暂停的社交媒体账号。

He ___reactivated his suspended social media account.

紫外线照射可以重新激活这种休眠病毒。

UV light ___reactivates this dormant virus.