protrude
/prəʊˈtruːd/verb
no obj., with adverbial of direction
1- extend beyond or above a surface伸出, 突出：
something like a fin protruded from the water.
一种像鳍的东西伸出水面。
1.1
- with obj.(of an animal) cause (a body part) to do this（动物）使（身体部位）突出, 伸出。
派生词
protrusion
nounprotrusive
adjective词源
early 17th cent. （in the sense 'thrust (something) forward or onward'）： from Latin protrudere,from pro- 'forward，out'+trudere 'to thrust'.