If metal is heated and then cooled very quickly, , by dipping in cold water, it will be very hard but will break easily.
A.what’s more | B.in general | C.for example | D.on the other hand |
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If metal is heated and then cooled very quickly, , by dipping in cold water, it will be very hard but will break easily.
A.what’s more | B.in general | C.for example | D.on the other hand |