首要的难题是，过时也好，不过时也罢，它很不错。The first difficulty is that, old-fashioned or not, it is very good.首要的治疗方法就是通过定期滋润来帮助受到影响的皮肤。The first line of treatment is to help the affected skin by moisturising it regularly.他对年轻画家言简意赅的建议是，“首...
...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...