hardhat
n. 建筑工人;主张使用暴力的保守份子
adj. 需要戴安全帽的
例句
And on the front of the card was a picture, a cartoon, of a little boy wearing a hardhat and driving a tractor.
在贺卡的正面有一幅画,一幅卡通画,是一个小男孩戴着一个安全帽在开一辆拖拉机。