pent
a
gon
复数形式
pentagons
1
五边形, 五角形
a geometric shape with five angles and five straight sides
- The flag of the city had a pentagon in the center, symbolizing the five founders.
城市的旗帜中央有一个五边形，象征着五位创始人。
- In the game, each player had to draw a perfect pentagon without the use of a ruler.
在游戏中，每个玩家都必须在不使用尺子的情况下画出一个完美的五边形。
- The stop sign is shaped like a red pentagon to alert drivers to halt.
停止标志的形状是一个红色的五边形，以提醒司机停车。
- She drew a pentagon on the chalkboard to illustrate its shape to the students.
她在黑板上画了一个五边形，向学生们展示它的形状。
2
a five-sided U.S. government building that houses the Department of Defense
3
the U.S. military establishment as an institution