单词	protractor
释义	protractor From Longman Dictionary of Contemporary EnglishRelated topics: Mathsprotractorpro‧trac‧tor /prəˈtræktə $ proʊˈtræktər/ noun [countable]  HMa piece of plastic in the shape of a half-circle, which is used for measuring and drawing angles → set squareExamples from the Corpusprotractor• Moira screamed and ran away from him, dropping several books and a protractor.• After all, this is the unit used on the protractor that we first came across early in our school careers.
随便看	dorsum dory dory DOS DOS dos dos dos and don'ts dos and donts dos and don’ts dos à dos dos-à-dos dosage dose dose dose somebody/yourself with something dose up dose with dose yourself with dosh dosido dosis doss doss doss about

英语词典包含170365条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。