by-prod·uct /-ˌprɑ(ˌ)dəkt/
副產物
by-product
副產品
By-prod·uct n. A secondary or additional product; something produced, as in the course of a manufacture, in addition to the principal product.
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by-product
n 1: a secondary and sometimes unexpected consequence [syn: byproduct]
2: a product made during the manufacture of something else
[syn: byproduct, spin-off]
byproduct
n 1: a secondary and sometimes unexpected consequence [syn: by-product]
2: a product made during the manufacture of something else
[syn: by-product, spin-off]