protrusion
US /prəˈtruː.ʒən/
UK /prəˈtruː.ʒən/
名词
1.
突出
something that sticks out from a surface, or the act of doing this:
示例:
•
It has a series of protrusions along its back.
在 Lingoland 学习这个单词
突出
something that sticks out from a surface, or the act of doing this: