资料来源 : pyDict

雁的一种

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Greylag \Grey"lag`\, n. (Zo["o]l.)
   See Graylag.

资料来源 : WordNet®

greylag
     n : common gray wild goose of Europe; ancestor of many domestic
         breeds [syn: {graylag}, {greylag goose}, {Anser anser}]