Obss
abbr. ocean bottom scanning sonar 海底扫描声呐
🗣️ 情景例句
Would you mind opening your suitcase?
请把您的箱子打开，好吗？
I had to pay three dollars for my club fee.
我付了三美元给俱乐部
He entered the cell and presented the letter to the aristocrat.
狱卒走进牢房，将信交给贵族。