a girl or woman who is known or understood to be dating a boy or man
My brother is too young to have a girlfriend.
glass
a clear, hard, solid substance that is used for making windows, bottles, and other products
People can see through these glass windows.
kiss
to use the lips to touch a person's skin as an expression of love, to welcome them, or as part of a sexual relationship
My mother kissed and said goodbye.
laboratory
a place where scientific experiments are carried on
This university has a good laboratory.
robot
a machine controlled by a computer that is able to move and perform many of the same tasks as people can
Now, robots are on Mars looking for life.
scientist
a person who is trained or works in a field of science
Albert Einstein was a famous scientist.
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