protractor
n.量角器
难易程度:
protractor为短语/超纲词汇
词根
tract,treat＝to draw（拉曳）
protractor
/prə'træktə(r); [US] prəʊ-; pro`træktɚ/
n instrument, usu in the form of a semi-circle with degrees (0 to 180) marked on it, used for measuring and drawing angles 量角器; 分度规.
n instrument, usu in the form of a semi-circle with degrees (0 to 180) marked on it, used for measuring and drawing angles 量角器; 分度规.
protractor
n[C]
a piece of plastic in the shape of a half-circle, which is used for measuring and drawing angles
a piece of plastic in the shape of a half-circle, which is used for measuring and drawing angles
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