Các câu ví dụ cho từ underground

1. Each pipe tube is sent underground by a crane through giant wells built for the purpose.

2. Workers set up a rubber pipe to let the air flow down to the construction site underground.

3. In 2013, he founded The Observatory, an underground club that is naturally dedicated to the music he likes.

4. The monorail lines, or elevated single-rail tracks, can be built on road dividers and are especially cost-effective because they cost one-sixth of the price of an underground railway system and are cheaper to maintain, according to industry experts.

5. Six underground reservoirs and one above ground are expected to hold 40,000 cubic meters of water in total.