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1. Oxford American Dictionary

   rust

   • IPA[rəst]

   美式

   • n.
     a reddish- or yellowish-brown flaky coating of iron oxide that is formed on iron or steel by oxidation, especially in the presence of moisture；a state of deterioration or disrepair resulting from neglect or lack of use
   • v.
     be affected with rust；deteriorate through neglect or lack of use.

   • noun: rust

2. • 釋義

   n.

   名詞

   • 1. a reddish- or yellowish-brown flaky coating of iron oxide that is formed on iron or steel by oxidation, especially in the presence of moisture paint protects your car from rust
   • ▪ a state of deterioration or disrepair resulting from neglect or lack of use they are here to scrape the rust off the derelict machinery of government
   • 2. a fungal disease of plants which results in reddish or brownish patches.
   • 3. a reddish-brown color his rust-colored hair

   v.

   動詞

   • 1. be affected with rust the blades had rusted away
   • ▪ deteriorate through neglect or lack of use.