单词	Protura
释义	Protura plural noun Pro·​tu·​ra prə‧ˈtyu̇rə : a group of very minute primitive wingless blind arthropods that lack antennae, have the mouth parts concealed within the head, undergo no noticeable metamorphosis except an increase in the number of abdominal segments, and are sometimes considered to form an order of Insecta or more often in current classification treated as a distinct class proturan -rən adjective or noun Word History Etymology New Latin, from prot- + -ura
随便看	fennel-flower fennels fennics fennier fenniest Fenno- Fennoman Fennoscandian fenny fenouillet fenouillette fens fenster fent fentanyl fentanyls fenthion fenthions fents fenugreek fenugreeks fenurons fenus fenusae fenusas

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