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1. Oxford American Dictionary

   pretreat

   • IPA[ˌprēˈtrēt]

   美式

   • v.
     treat (something) with a chemical before use

   • verb: pretreat, 3rd person present: pretreats, gerund or present participle: pretreating, past tense: pretreated, past participle: pretreated

2. • 釋義

   v.

   動詞

   • 1. treat (something) with a chemical before use the steel is pretreated against corrosion
3. • 更多解釋

   pretreat

   • IPA[ˌpriːˈtriːt]

   英式

   • v.
     treat (something) with a chemical before use: the steel is pretreated against corrosion

   Oxford Dictionary