Obss
abbr. ocean bottom scanning sonar 海底扫描声呐
🗣️ 情景例句
Thank you, Dr. Stewart.
谢谢你，Stewart大夫。
Is there any way of ensuring we'll have enough time for our talks?
我们是否能保证有充足的时间来谈判？
so vast is the number of planets,
但是行星的数目是那么庞大，