马萨指了指他的头，做了一个表示将他的氧气罩弄成小丑帽的手势。
Massa points to his head, making a gesture that suggests he turned his oxygen mask into a clown's hat.
“黑帽”指恶棍或坏蛋，尤其在西部片里，他们一般都戴着一顶黑帽子，而跟他们对手的正面角色多戴白帽子。
A black hat is the villain or bad guy, especially in a western movie in which such a character would wear a black hat in contrast to the hero's white hat.
白帽黑客专家，指公司雇佣专家去测试他们的官网网站或email系统是否易受攻击。
White-hat hacking Experts hired by companies to test their websites or email systems for vulnerabilities.
应用推荐