""touch off"" — hear it spoken in real YouTube videos

Found 1 examples of ""touch off"" across 1 YouTube videos with captions. Click any result to hear native speakers use this word or phrase in context — free, no sign-up required.

Refueling a NUCLEAR REACTOR - Smarter Every Day 311

SmarterEveryDay

an indicator that you put, anchor it to something else and you touch off.