Englishfor English speakers
curve
Noun
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A curve is a line that is not straight. It is like part of a circle. It starts in one direction and turns.
The edge of the flower petal is a beautiful curve.
curve
Verb
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To move in a curve.
The car curved around the corner.
This piece of wood is not good. It is curved.
testing
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noun
the act of subjecting to experimental test in order to determine how well something works
they agreed to end the testing of atomic weapons
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noun
an examination of the characteristics of something
there are laboratories for commercial testing
it involved testing thousands of children for smallpox
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noun
the act of giving students or candidates a test (as by questions) to determine what they know or have learned