Bombs need detonators like a garage door opener or something.
炸弹需要引爆装置 比如车库遥控器之类的。
机智生活百科
Never Get Locked In. You probably know that garage door openers tend to lock up as soon as the power is off.
切勿锁死所有出口。你可能知道车库门开关往往会在停电后立即锁定。
跟大叔Bob学英语
As well a garage sometimes has a garage door opener.
车库有时也有车库门开启器。
英语百科
Garage door opener
A garage door opener is a motorized device that opens and closes garage doors. Most are controlled by switches on the garage wall, as well as by remote controls carried by the owner.