do people know anything about the bottom of the sea now?

how do people explore the bottom of the sea?翻译 what do you know about the sea? do you know anything about the moon Do you know anything about the sink to the bottom of the sea 英语翻译What do you know about the sea?Some people have seen it, 英语翻译What do we know about the sea?Most of us have seen it.We What do you know about the sea?You may have seen it.Some of 英语阅读理解 Do you know anything about the way of shopping in wes do you know anything about the players of our school footbal The Sea What do you know about the sea?Some peop Do you know anything about the english _______?选择!