Obss
abbr. ocean bottom scanning sonar 海底扫描声呐
🗣️ 情景例句
She is sleeping here so she won't have to travel from Riverdale in the morning.
她晚上住在这儿，免得早上从Riverdale赶过来。
I hope he will meet me at the airport.
我希望他能到机场接我。
Let us suppose that a child suddenly crosses the road in front of you.
让我们假设一个小孩子突然在你前面穿过马路。