单词	wild ducks
释义	同wild duck
随便看	chain-indexing chain infection chaining chaining address chaining arrow chaining backward chaining bit chaining channel action chaining check chaining command file chaining common variables chaining core block chaining downhill chaining equivalence variables chaining error chaining field chaining forward chaining method chaining of i/o commands chaining overflow chaining pin chaining search chaining uphill chain inhibitor chain-initiating