protractor
🇺🇸
/prəˈtræktər/
🇬🇧
/prəˈtræktə(r)/
noun
R
A tool used to measure angles or to draw straight lines.
Using a protractor, she accurately measured the angle of the roof.
使用量角器，她準確地測量了屋頂的角度。
translation
量角器
詞形變化
Plural
protractors