单词	protractile
释义	protractile /prəˈtraktʌɪl / /prəˈtraktɪl/ adjective Another term for protrusible.Wrasses characteristically have a protractile mouth, cycloid scales, and a single continuous dorsal fin lacking an obvious notch between the soft and spiny portions.... In blennies the palatines are toothless, and the mouth not protractile. Ponyfish have a very protractile mouth, a phenomenon which can be demonstrated by squeezing the head, when the mouth will shoot forward.
随便看	psychogenesis psychogenetical psychogenetically psychogeneticist psychogenetics psychogenic psychogeny psychogeographer psychogeographic psychogeographical psychogeography psychogeriatric psychogeriatrician psychogeriatrics psychogogue psychogonic psychogonical psychogony psychogram psychographer psychographic psychographics psychography psychohistorian psychohistoric

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