検索内容:
seagull
I saw a seagull flying at the beach.
rhodium, Rh
Rhodium is a type of precious metal, very rare and valuable.
osmium, Os
Osmium is the densest element on Earth.
gallium
Gallium is one of the elements on the periodic table.
potassium
Potassium is an important mineral for the human body.
(archaic) a sea lion
In the old days, people were moved by the strength and beauty of the sea lion.
(rare) a sea lion
A sea lion is a type of marine animal, and it is very rare.
helium
Helium is the second lightest element on Earth.
lithium
Lithium batteries last a long time.
beryllium, Be
Beryllium is one of the elements abundantly present in the Earth's crust.
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