各处对单程租赁的收费都很高。There are hefty charges across the board for one-way rental.劳拉穿梭于纽约各处，一有机会就打车。Laura flits about New York hailing taxis at every opportunity.我们在该地区各处部署了保安。We have a security guard around the whole area....
...a frequency of 24 kilohertz.24 千赫的频率They sat aside 100 channels, each 200 kilohertz wide.他们在旁边坐了100种渠道, 各200千赫宽.Twisted - pair conductors are sufficient if frequencies of interest are below a few hundred kilohertz.如果信...