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1. Oxford Dictionary

   lag

   • IPA[laɡ]

   英式

   • v.
     enclose or cover (a boiler, pipes, etc.) with material that provides heat insulation

   • verb: lag, 3rd person present: lags, gerund or present participle: lagging, past tense: lagged, past participle: lagged

2. • 釋義

   v.

   動詞

   • 1. enclose or cover (a boiler, pipes, etc.) with material that provides heat insulation all pipes and tanks in the attic should be lagged a lagged hot-water tank