例句與造句

1. With so many wireless cameras and microphones, so many walkie-talkies, so many cell phones and so many law-enforcement agencies, " this is probably the busiest, noisiest radio frequency environment on the planet right now, " said Libin, a 45-year-old technology consultant from Woodmere, N . Y . " We've been working for months on a plan to divide up the frequencies, and if someone is not complying with the plan, we have to shut them down ."
2. It's difficult to find frequency environment in a sentence. 用frequency environment造句挺難的