the line of flight taken by a bird in its regular migrations.
| 单词 | θ38388 |
| 释义 | the world > animals > birds > actions or bird defined by > [noun] > migration > route of (3) fly-line1884 the line of flight taken by a bird in its regular migrations. flyway1891 The route taken by birds during migration; also in extended use (see quot. 1948). flight-line1933 (a) the direction of flight by birds, esp. during migration; (b) Aeronautics (see quot. 1956). |
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