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Styrofoam (n.)
[Styrofoam 词源字典]
1950, trademark name (Dow Chemical Co.), from
-styr-
(from
polystyrene
) + connective
-o-
+
foam
(n.).
[Styrofoam etymology, Styrofoam origin, 英语词源]
[Styrofoam 词源字典]