- 释义：
- n. 五角大楼; 美国国防部; 五边形
- 例句：
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He outlined the pentagon in red.
他用红笔画出五角形.
换一句
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The space shuttle undertook a topsecret mission with a military payload under Pentagon control.
航天飞机执行一项绝密使命,使军用酬载由五角大楼控制.
换一句
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Within an hour, the South Tower and the Pentagon were also hit.
接下来的一小时内, 南塔和五角大厦也相继遭撞击.
换一句