Ethical hackers spend their time attacking computer security systems to prevent data theft and fraud. Using the same techniques as their unethical counterparts who only want to steal, ethical hackers look for system weaknesses and report the problems. One needs certification, IT security experience and a college degree. But it can be very exciting!
Sometimes fashion models look good modeling a whole outfit, but some individual parts of their bodies are not good for close-ups. That’s why body-parts models are crucial. Their specialty involves modeling one part of their body, like a hand, foot or leg. Hand models help sell rings, bracelets or nail products. Foot models make shoes look good, and leg models highlight things like stockings or lotion.
High-rise window washer
Imaging going out onto the roof of a 30-story building, turning around and stepping backward over the edge. High-rise window washers do that every day, but of course they are attached to one or more ropes. They enjoy incredible views and witness lots of goings-on inside offices. Definitely not a job for the faint of heart!
faint of heart：膽小的人
Definitely not a …（對…而言，那絕對不是…）