tower head的用法和样例：
例句
- There was only the heavy sharp blue head and the big eyes and the clicking, thrusting all-wallowing jaws.
在它身上只能看到沉重的蓝色尖头和大大的眼睛，及卡嗒一声使能将一切吞食的大嘴巴。 - A straight,thin shaft with a pointed head at one end and often flight-stabilizing vanes at the other,meant to be shot from a bow.
箭一端带有尖头的，细的直杆，另一端常带有用于稳定飞行的涡轮叶，以弓弩的形式发射。
