protractor
n.量角器
单词图片
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.
protractor
n[C]
a piece of plastic in the shape of a half-circle, which is used for measuring and drawing angles