Obss
abbr. ocean bottom scanning sonar 海底扫描声呐
🗣️ 情景例句
Reading.
读书。
Why don't you turn off the stupid program?
何不把无聊的节目关掉？
There were hardly any trees on the island and there was no water, but this did not prove to be a problem.
岛上几乎没有一颗树，也没有淡水，但这不算什么问题。