The crew had to underbrace the damaged pier before continuing construction.

The underbrace in the equation highlights the common factor.

They underbraced the fragile skylight with timber before the storm.

The proof used two underbraces to clarify which terms were being summed.

The instructor underbraces the terms in the equation to indicate the group that should be evaluated first.

The crew was underbracing the old bridge when heavy rain forced them to stop.