英语翻译1.直到嘈杂声和激动情绪平息下来,我们才知道真正发生了什么事情.（settle）2.自19世纪以来,许多科学家到未知的土地上去探险.（explore）

1 Not until the noise and the excitement settled down did we know what had actually happened.2 Many scientists have explored in unknown places since the nineteenth century.