検索内容:
sphere; area; region
This sphere is a part of our life.
air pollution
Air pollution is having a serious impact on the health of the planet.
to expose oneself to fresh outside air
I maintain my health by exposing myself to fresh outside air every morning.
exposing oneself to fresh outside air
terraforming (planetary engineering)
The process of terraforming is part of transforming other planets into a habitable environment for humans.
earth science
Earth science is an important field of study for unraveling the mysteries of nature.
an Earthling; a Terran
I am an Earthling.
extraterrestrial area
We are searching for extraterrestrial life.
the ozone layer
The destruction of the ozone layer has a significant impact on the Earth's climate.
nacre (pearly substance on the interior of shells)
Her necklace was covered with a layer of pearl.
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