When addressing a judge, always use 'your honor'.
在对法官说话时, 一定要尊称他为 'your honor'
Prompt delivery would be necessary as we have a fast turnover in this trade. We would therefore need your assurance that you could meet all delivery dates.
即期交货很重要,因为这种货流转很快。所以我们需要你方保证及时交货。
This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second.
这种通讯联系要靠21厘米波段,即每秒1420兆周的精确无线电频率。