施工 (shī gōng): construction; to carry out construction or large-scale repairs

This subway line is under intense construction and is expected to open to traffic by the end of next year.

Because of road construction, the intersection ahead is already closed, so we have to take a detour.

The new teaching building is still under construction, so students cannot enter that building for the time being.

Construction is going on at the entrance of the residential community, and the noise is so loud that nearby residents can't sleep well at night.

Due to the weather, the construction of the bridge had to be postponed until next month.

The construction team works from 7 a.m. to 6 p.m. every day, which is very hard work.