| bacteria |
microscopic organisms that often play a role in the decay of living things, the process of fermentation, and sometimes in causing disease. |
| buddy |
(informal) friend. |
| change |
to make different. |
| corridor |
a hall or passageway. |
| everywhere |
in every place; in all places. |
| fence |
a structure used to mark off an area or to keep animals or people in or out. |
| late |
happening after the usual or expected time. |
| mountain |
a land mass with great height and steep sides. It is much higher than a hill. |
| national |
of or having to do with the whole country, not just one part of it. |
| room |
an area of a building separated from similar areas by walls or doors. |
| solar |
having to do with or coming from the sun. |
| task |
a piece of work to be done; duty. |
| trash |
anything that is thrown away because it is not wanted. |
| weak |
having little strength or power. |
| welcome |
used to express warm greetings to someone who has just arrived. |