People will walk down only certain blocks or go completely around specific street corners.

The radio announces when Santa will be flying over certain blocks, so the children can spot him through their windows.

People familiar to residents of certain blocks on certain streets.

Touching one increases Mario's size and allows him to break certain blocks.

It is done by keeping several page tables that cover a certain block of virtual memory.

In this environment, volunteers are hired to fill certain blocks of time to cover emergency calls.

It seems that there are certain stumbling blocks regarding border placement and jurisdiction.

Every time the cursor moves to a certain block, the number on it decreases by one.

They have uncovered nine bodies so far in clusters around certain blocks.

There are still no telephones, but on certain blocks, standpipes provide running water.