这种鸟的喙状结构非常适合捕食小鱼。
The bird's ___rostrum is perfectly shaped for catching small fish.
这艘罗马战舰的船首装有用于撞击的青铜喙形撞角。
The Roman warship had bronze ___rostrums on its bow for ramming attacks.
校长站在讲台上向学生们发表演讲。
The principal stood on the ___rostrum to deliver a speech to the students.