긴장한 英語で:

this building was erected in the twenties

to stand erect

A memorial to her was erected after her death.

the definition of erect is standing straight up. A groundhog standing erect. How does one erect a tent?

The police have erected barriers on all roads in order to catch the escaped prisoners.

We're going to erect a large maruqee for the wedding, so we can keep the guests dry if it rains.

the building was erected in 1845

Ned held the flag erect.

Nobody intends to erect a wall.